The Problem with Treating Your Loyalty List as a Single Audience

Many founders treat their loyalty list as a single audience. They run a public promo, watch it lose money, decide to do member-only instead, and tag everyone with an account the same way. There is a layer beneath this that often hides the real win.

The term “member” hides a critical divide. Your list contains non-paying prospects carrying an unpaid acquisition cost, alongside verified buyers whose acquisition costs are already paid. They share an inbox, but not an economic profile.

The difference matters because the first group still carries an unpaid acquisition cost. To convert them, you need to spend marketing dollars roughly comparable to what you would spend on any cold customer. The second group is different — their cold acquisition cost is already paid, sunk into the first order. Retention marketing on warm channels is far cheaper than cold paid traffic.

Put plainly: the same 25 percent off discount given to a past purchaser is profitable on the contribution math. The same 25 percent off given to an email-only signup who has never purchased is loss-making, the same way a public discount is.

In this article, we will compare three promotional strategies — public, flat member-only, and tiered member-only. We will look at how the tiered version doubled a public promotion’s weekly contribution while capturing less top-line revenue, and why revenue is the wrong number to optimise on when comparing campaigns.

A member-only discount programme, designed correctly, treats three distinct cohorts differently:

• Non-members (cold prospects): No prior relationship with the brand. The full Customer Acquisition Cost (CAC) of $30 must be paid to convert them. Public discounts apply to this cohort — and turn most cold conversions loss-making once the CAC is included in the math.
• List-only members (warm email, never bought): Signed up via a popup, gated content, or a welcome offer. On the brand’s email or SMS list but have not yet validated the product with a purchase. From a contribution-math perspective these customers are still cold — converting them costs marketing dollars roughly comparable to a paid acquisition. A flat 25% off member discount loses money on this cohort the same way a public discount does.
• Past-purchaser members (warm email, bought before): On the list AND have purchased at full or near-full price at least once. The acquisition cost is already paid, sunk into that first order. Retention marketing on warm channels (email broadcast, SMS) is essentially free at the margin. A 25% off discount to this cohort is highly profitable.

The math runs on the same six profit levers as any other campaign:

The Ad spend lever is the one that splits the three cohorts. Non-members and list-only members both require cold paid acquisition spend (around $30 in this teaching example). Past-purchaser members require near-zero retention spend. The discount programme that recognises this difference and treats each cohort accordingly is the one that beats the flat alternative.

1. Example showing you the numbers

Imagine you sell premium apparel on Shopify. Your hero product is a hand-finished knit sweater you retail at $80 per unit. Your cold paid acquisition runs at $30 per converted customer. We compare three campaigns: a public 25% off sale anyone can claim, a flat member-only 25% off restricted to your email and SMS list, and a tiered member-only programme that gives past-purchasers 25% off and list-only members a lighter 10% off welcome code. The story walks through the public sale and the tiered programme in detail (the strongest contrast); the flat member-only case sits between them in the tables that follow. To compare them fairly, we assume each cohort produces the same number of conversions when offered a discount and zero when not — so the comparison isolates the discount structure from conversion-rate speculation. The numbers are kept small for clarity; in production the same proportional story plays out at any scale.

The Cohort Model — per-customer contribution breakdown

Three campaign strategies side by side. Each campaign is modelled with the same volumes — 10 sales per cohort that engages with the offer — so the comparison isolates the effect of the discount structure rather than conversion-rate speculation.

Each cohort produces 10 sales when offered a discount, and zero when no offer is extended (worst-case assumption). Per-customer contribution figures come from the six-lever model.

Revenue vs Contribution — the metric most founders watch is the wrong one

Founders typically look at total revenue and assume that more revenue means more profit. The math below shows why this is a trap. Campaign 1 generates the HIGHEST revenue and the LOWEST contribution. Campaign 3 generates less top-line revenue but doubles the contribution. The revenue number rewards the campaign that converts more customers; the contribution number rewards the campaign that converts the right customers.

Revenue is the top-line number that appears on a dashboard. Contribution is what is left after the six profit levers (product, ad spend, 3PL, payment, returns, discount) are paid. The gap between them is the cost of getting the wrong customers across the line.

2. How to structure a profitable member-only programme

A tiered member-only programme requires you to know two things: who is actually in each cohort, and what offer turns each cohort positive. The math determines the offer; the segmentation determines who receives which offer.

Six steps to design a member-only programme that earns more contribution than flat or public alternatives.

1. Segment your list into list-only and past-purchaser cohorts. Most email platforms (Klaviyo, Omnisend, ActiveCampaign) support purchase-history segmentation natively. The cut is binary: zero prior purchases versus one or more prior purchases. This is the most important segmentation you will set up in your first year.
2. Pull your blended cold CAC and your warm retention spend per order. The gap between these two numbers is the lever the tiered programme exploits. For most apparel D2C brands the gap is $25 to $40 per converted order — enough headroom to support a 20+ percent discount for past-purchasers while the list-only cohort needs a lighter offer.
3. Set the past-purchaser discount at 20 to 30 percent off. This cohort is your warmest, most loyal audience. Reward them with a discount deep enough to feel meaningful. The contribution math comfortably supports 25 percent off because you are not paying any acquisition cost on the order.
4. Set the list-only welcome offer at 10 to 15 percent off. The shallower discount leaves enough margin to absorb the cold acquisition cost and still earn a positive contribution. Treat this offer as a stepping-stone: the goal is to convert the list-only member into a past-purchaser, after which they earn the deeper member discount on subsequent orders.
5. Track contribution per sale by cohort, not revenue. A revenue-focused metric will reward whichever campaign converts more customers — including the loss-making ones. Contribution per sale tells you whether each customer is actually adding to the bottom line. The list-only conversion rate on the tiered programme will be lower than on the flat 25% (the offer is less aggressive). That is by design. What matters is total contribution across cohorts.
6. Refresh the offers regularly. A static 25% off becomes the expected default for past-purchasers and erodes its perceived value. Rotate between deeper discounts, early access to drops, free gift with purchase, and category-specific offers every six to eight weeks to keep the member channel feeling alive.

3. Frequently asked questions

4. Quick reference: what to avoid and what to apply

The Problem with Looking at Subscriptions on a Per-Order Basis

Many founders reject subscription models because a 10 to 20 percent discount slashes their immediate margins. But evaluating a subscription on a single order is a mistake.

The per-order math is the wrong frame. The right frame is the twelve-month net contribution per customer you will earn. With a subscription, profit is calculated over the lifetime of the customer, not just at initial purchase.

A subscription discount, designed correctly, builds lifetime contribution in three layers:

• Order 1 is thin — and may be a small loss: The Customer Acquisition Cost (CAC) plus the subscription discount squeezes order 1 to near zero. In this article’s worked example, order 1 lands at $1 of contribution. With slightly deeper discount or higher CAC, order 1 flips to a small loss. That is fine — the recurring orders cover it inside one month.
• Orders 2 through 12 each earn double the standalone contribution: From order 2 onwards, no new CAC hits the order. Each recurring delivery earns $26 of contribution. The same customer on a single standalone sale earns the brand $12. The recurring relationship is more profitable per order than the one-time sale, even with the subscription discount in place.
• Twelve months of recurring orders dwarf the standalone alternative: Across twelve monthly orders the subscriber generates $287 of cumulative contribution — twenty-four times the standalone customer’s $12. Even with realistic churn at month 6, the subscriber still banks $131 — eleven times the standalone. The thin order 1 is the price of admission to a customer relationship worth far more than the single sale.

The math runs on the same six profit levers as any other campaign:

Four levers stay flat between a standalone single-sale and a subscriber’s recurring order. Product cost, 3PL, payment processor and returns are essentially identical per order. The Ad spend lever is the one that changes — paid once to acquire the customer, then zero for every recurring order that follows. This article will show you how to price subscribe-and-save so the twelve-month LTV comfortably exceeds the standalone single-sale.

1. Example showing you the numbers

Imagine you sell premium multivitamins on Shopify. Your hero product is a 30-day bottle you retail at $60 per unit. Your standalone customer pays the full $60. Your subscribe-and-save offer gives subscribers 20% off, so they pay $48 per bottle every month. The story walks through two acquisition paths: a standalone customer who buys once, and a subscriber whose recurring orders capture twelve months of contribution.

The Subscriber Model

Five scenarios side by side. The first is the standalone single-buy customer at full retail. The next three break down the subscriber’s economics at order 1 (carries acquisition cost), orders 2-12 (per recurring order), and the 12-month cumulative LTV. The last is a realistic churn case where the subscriber cancels at month 6.

Values stated as totals per order for the per-order rows, and cumulative across the lifetime for the LTV rows. The 12-month subscriber column assumes no churn for teaching clarity; the 6-month churn column shows what happens if the subscriber cancels after six orders.

2. How to price a profitable subscription

A subscription discount is a deal between the brand and the customer. The customer agrees to a recurring relationship in exchange for a meaningful per-order saving. The brand agrees to a thin order 1 in exchange for eleven more orders of full-margin contribution.

Six steps to price a subscription that pays for itself.

1. Sell the standalone product at full retail. No sitewide discount, no bundle pricing on the single unit. The standalone customer pays the full price — and the brand earns a clean per-customer contribution on that sale. The full-retail price is also the anchor that gives the subscription discount its perceived value. If standalone customers already get a discount, the subscription saving is smaller in contrast and feels less compelling.
2. Set subscribe-and-save at 10 to 20 percent off full retail. Too shallow and few customers enrol; too deep and order 1 may lose more money than the recurring orders comfortably recover. The 20 percent off example in this article keeps order 1 just above zero. If you want a deeper discount, raise the retail or accept a small order 1 loss that the recurring orders recover within one cycle.
3. Verify the cumulative break-even by month 2 or 3. With order 1 at or near zero and orders 2-12 each earning full margin, the cumulative contribution should cross into positive territory within the first two recurring orders. If the breakeven extends past month 4, the discount is too deep, the retail is too low, or your CAC is too high. Model this before launch.
4. Make subscription the default at checkout. The customer has to actively unselect subscribe-and-save to choose one-time. Defaults move conversion dramatically — well-designed flows convert 30 to 50 percent of customers into subscribers when the subscription is the default option.
5. Track subscriber retention by acquisition cohort. The metric that matters is what percentage of customers acquired in a given month are still subscribed at three, six, and twelve months. Churn between months 1 and 3 is usually the steepest part of the curve — if more than 40 percent of subscribers cancel before order 3, the product or the onboarding experience needs work.
6. Reactivate churned subscribers with a one-month return offer. A subscriber who churned at month 4 is not the same as a brand-new customer — they have already validated the product. A targeted “come back for one month at $40” offer often re-activates the subscription cleanly. The CAC has already been paid, so the return offer can be aggressive without breaking the unit economics.

3. Frequently asked questions

4. Quick reference: what to avoid and what to apply

The Problem with Treating Every Promotion as a Discount

When founders want to drive a campaign, they reach for the same lever every time: a percentage discount. Take 10% off, take 20% off, take 30% off. The customer pays less, the brand earns less, everyone moves on.

The trouble is that a cash discount is a one-to-one trade. A dollar of perceived saving for the customer is a dollar of foregone contribution for the brand. The mechanic has no leverage in it. What the customer feels is exactly what the seller pays.

A gift with purchase, designed correctly, breaks the one-to-one trade in the following ways:

• Increased perceived value: The customer perceives the gift at its retail value. The seller carries the gift at the Cost of Goods Sold (COGS) — typically thirty to forty percent of retail for consumables, and as low as twenty percent of retail for accessories. So one dollar of seller cost on a well-chosen Gift with Purchase (GWP) delivers three to five dollars of customer-perceived value. Same customer outcome. A third to a fifth of the campaign cost.
• Moving dead stock: The mechanic compounds further when the gift is sourced from slow-moving inventory. A seasonal Stock Keeping Unit (SKU) sitting at the Third-Party Logistics (3PL) facility is accruing holding fees every month. Used as a GWP gift, that sunk inventory turns into a conversion driver. The campaign cost falls to near zero, and you clear dead stock as a bonus.
• Increases average order value (AOV): The threshold does the third job. Setting a qualifying threshold above your current AOV — “Free gift on orders over $40” — pushes customers to add items to their cart to hit it. Those incremental items are revenue at near-full margin. The campaign is paid for by the AOV lift itself, not by your margin.

The math runs on the same six profit levers as any other campaign:

The GWP touches three of these in your favour. The Product cost lever moves up slightly (the gift’s COGS), but a small move. The Discounts lever does not move at all — the headline price stays where it is. The 3PL lever moves up by the small pack-out bump on a three-item shipment. Against that, the revenue line climbs sharply because the threshold has pulled an incremental item into the cart. This article will show you how to design a GWP so the math works in your favour every time.

1. Example showing you the numbers

Imagine you sell premium soy candles on Shopify. Your hero product is a hand-poured 8-ounce candle you retail at $30 per unit. With your standing 10% sitewide discount applied, the customer sees $27 at checkout. The story walks through two campaign options for driving conversion: deeper discount, or a gift with purchase at a qualifying threshold of $40.

The Campaign Model

Four scenarios side by side. The first is Business As Usual (BAU) at the standing 10% sitewide discount. The next two are deeper discount campaigns. The fourth and fifth are GWP at a $40 threshold — once with a regular-stock limited-edition holder, and once with the same holder drawn from slow-moving inventory at zero marginal cost.

All values stated as totals per order. The GWP columns reflect a 3-item qualifying cart at $40 paid: the hero candle, a $14 added 4oz candle, and the free $15-retail limited-edition ceramic holder.

2. How to design a profitable GWP

A GWP is not a discount in disguise. It is a perception arbitrage funded by the gift’s wholesale-to-retail markup, layered on a qualifying threshold that pulls an incremental item into the cart at near-full margin. This is how you should treat them:

Six steps to design a GWP that pays for itself.

1. Set the qualifying threshold thirty to fifty percent above your current AOV. Same rule as the free shipping threshold. Too low and no customers add items; too high and almost no one qualifies. If your AOV is $27, the threshold belongs somewhere between $35 and $45 — somewhere a customer can hit by adding one accessible second item from your range.
2. Pick a gift the customer would actually want, not a smaller version of the hero. A 4oz sample of an 8oz candle reads as a tease, not a gift. A limited-edition ceramic candle holder, a brass match cloche with long matches, or a vanilla incense starter kit reads as a real gift — something to keep, display, or use alongside the hero product. The gift category should complement the hero, not echo it.
3. Pick gifts from the high-margin end of your catalogue. Accessory and decor categories typically carry twenty to twenty-five percent COGS, giving you a four-to-one or five-to-one perceived-value-to-cost ratio. Consumable gifts at thirty to forty percent COGS deliver three-to-one. If your gift has higher COGS than your hero, the campaign math compresses and a cash discount becomes more cost-competitive.
4. Use slow-moving or end-of-season SKUs as the gift wherever you can. Inventory already sitting at the 3PL accruing holding fees has had its COGS paid months ago. The marginal cost of using it as a GWP gift is near zero. You convert a sunk holding cost into a conversion driver and clear dead stock in the same campaign.
5. Anchor the gift’s perceived retail value clearly on the product page and at the cart. “Free limited-edition $15 ceramic holder on orders over $40” gives the customer three anchors: what the gift is, its standalone retail price, and the threshold to reach it. A vaguely-described complimentary gift with no price anchor reads as cheap regardless of what it actually is.
6. Tier the gift if you want to push customers further up the value ladder. “Free $15 holder over $40, premium $30 incense and holder bundle over $80” gives customers a second target to aim for. Tiered GWP campaigns can lift AOV by an additional ten to fifteen percent over single-threshold campaigns when designed well.

3. Frequently asked questions

4. Quick reference: what to avoid and what to apply

Olivia's Three-Threshold Test

These are the standing economics on her single bottle of multivitamin before any free-shipping policy. The customer pays $2.50 shipping pass-through. These numbers drive the cost stack in Section 2 and the threshold comparison in Section 3.

The Six Profit Levers and Where Shipping Fits In

Every ecommerce sale moves the same six profit levers. Five are operating costs that move with the order. The sixth is the discount lever. In a percentage-off campaign, the sixth lever is the price cut. In a bundle, it is the bundle discount. In a free shipping threshold, it is the absorbed shipping — money the seller pays that the customer would otherwise have paid.

• Cost of Goods and Returns scale per unit — both move with price and quantity sold.
• Channel Fees scale with cart revenue.
• Ad Spend and 3PL pick are per-order costs paid once, regardless of how many units are in the cart.
• Outbound Shipping sits separately from the cost stack — in a paid-shipping baseline the customer covers it, and in a free-shipping scenario the seller absorbs it.

The question is what the customer does in response.

Free Shipping at Four Threshold Levels

Same product, same customer profile, four different shipping policies. The rightmost column is the gotcha — it shows the contribution lift versus the paid-shipping baseline.

Reading note: the rows below show isolated single-order scenarios — what one customer's checkout looks like under each policy. Your store's blended AOV under any rule will be an average across customers, some of whom clear the threshold and some of whom do not. The table isolates the unit economics; the real-world lift in your store scales by the percent of orders that actually clear.

Three patterns to read off the table.

The $50 row: customer behavior didn't change, so Olivia simply swallowed the $2.50 shipping. Contribution drops by exactly that amount. Pure cost, no payback.

The $75 row: the customer's $25 add-on carried about $9 of new variable costs ($7 COGS plus small increments in 3PL, channel fees, and returns), leaving $16 of new contribution. Subtract the $3 of absorbed shipping and you net $13 — a four-to-one payback on the shipping investment.

The $100 row: a $50 add-on generates roughly $32 of new contribution. Net of the $3.50 absorbed shipping, the lift is $28.50 — better than eight-to-one. Bigger AOV jumps generate bigger contribution payback, as long as the customer plays along.

The catch is in that last clause. Push the threshold too far above the natural cart and customers abandon. The next sections show how to find the band that lifts AOV without breaking conversion.

How the Cost Stack Changes as the Threshold Lifts AOV

The chart below shows the per-order cost stack across the four scenarios. Each bar's height is the order revenue, so the bars grow with AOV.

Two things to watch. Ad Spend (red) stays at $15 across every bar — one ad bought one order, regardless of cart size. 3PL pick (grey) and absorbed shipping (dark orange) creep up a dollar or two as packages get heavier, but nowhere near in line with revenue. The contribution slice (green) absorbs the difference: it widens dramatically as the threshold pulls more revenue per order through the same flat-ish per-order cost base.

How to Set Your Threshold Without Losing Sales

Five steps to set the threshold that lifts contribution without tanking conversion.

1. Know your AOV. Pull the average order value from your store analytics over the last 90 days. Strip outlier orders (very large B2B-style purchases) that distort the average. That number is your starting point.

2. Build the add-on tier first. The threshold only works if there is something obvious for the customer to add. If your catalogue is dominated by $50+ hero SKUs and you have nothing between $20 and $40, build that tier before you set the threshold. A $25 travel size, a $20 accessory, a $30 sample pack — these are what carry the customer from their existing cart to your threshold.

3. Set the threshold 30 to 50 percent above current AOV. If your AOV is $50, threshold $65 to $75. If your AOV is $80, threshold $105 to $120. This range is high enough to incentivize an add-on, low enough that most customers can clear it with one item from the add-on tier you built in step 2. Pushed higher than about 80 percent above AOV, customer abandonment starts to bite.

4. Model the math before launch. Six-lever model — five operating cost lines plus the absorbed shipping. Run contribution per order at the proposed threshold and the expected new AOV. If contribution comes out above baseline at modeled volume, ship the policy. If it stays flat or drops, tighten the threshold or build better add-on offers.

5. Test on a small segment. Watch both AOV and conversion. Run the threshold on one ad campaign or one email segment for two weeks. Industry benchmarks put the lift in a well-set threshold at 30 to 60 percent of orders adding to clear. If your test moves contribution per order up and conversion holds, scale. If conversion drops more than AOV gains compensate for, the threshold is too high — pull it down a notch.

The Problem with Treating Volume as the Only Growth Lever

When founders want to grow, they often push more units of the same product. The reasoning is solid: “The product works. We just need more people to buy it. Run ads. Drive more traffic. Run discounts. Move higher volume.”

That, however, is only one of two valid growth levers. The other, often neglected, is to increase the average order value.

You see, when a customer has already arrived at checkout, the cost of getting them there has already been paid. Furthermore, the cost of getting the product to them is largely covered by the value of the first product in their cart. Any additional products added to the cart only add marginal shipping costs (if any) to the total order.

This is where increasing the average order value through bundles becomes an invaluable tool to unlock more profit. What’s more, bundles outperform percentage discounts on single products by a mile. They are incredibly effective at not only moving more stock, but also making more profit while offering the customer better value.

Bundles can take several shapes. They can be multiples of the same product — for example, buy two wooden spoons and get a third one free. They can also be a combination of multiple products — for example, a bundle containing a wooden spoon, turner, spatula, skimmer, mixing spoon, and salad fork.

Either of these bundle strategies allows you to increase your order value while offering the customer a better price per unit. Your customer pays less per unit, and you make more money overall.

To see why this works at the math level, we need to look at the six profit levers that move on every ecommerce sale:

Five of these six levers stay almost flat whether the cart contains one product or six. Only the Product cost lever scales with units. That asymmetry is what makes bundles win. This article will show you how to set up your bundles for success.

1. Example showing you the numbers

The Bundle Model

Four scenarios side by side. The first two show the apples-to-apples comparison on three spoons — three customers at 10% off versus one customer with a 20% off bundle. The second pair shows the same comparison on six utensils at the same discount structure.

2. How to design a profitable bundle

Bundles are not so much a discount campaign as they are an order-consolidation strategy. The discount is what the customer sees. The eliminated per-order costs are what the founder banks. This is how you should treat them:

Six steps to design a bundle that scales contribution.

1. Pick products customers already buy together. Look at your order history for items that co-occur in the same cart more than 8 to 10 percent of the time. For mixed bundles, this co-occurrence data is gold — it tells you which combinations the customer already wants. For multi-pack bundles, look at customers who reorder the same single unit within 30 days — they are telling you they would have bought the multi-pack if you had offered it.
2. Test bundle size as a variable. Do not pick a bundle size by intuition. Run a 2-pack, a 3-pack, and a larger bundle (5-pack or 6-piece set) in parallel for two to four weeks. In most categories the optimal bundle size is bigger than the brand’s first instinct. Bigger bundles produce bigger per-order contribution; customers are often willing to commit to more units than you think.
3. Model the contribution before you launch. Same six-lever model you would use on any campaign, with payment processor and channel fees combined at the platform’s rate — 3% for Shopify and similar direct ecommerce, 15% for Amazon, Walmart and other marketplaces. If contribution per order at the proposed bundle size and discount beats the separate-orders baseline, ship it. If not, change the bundle, change the discount, or kill the campaign at the model stage.
4. Make sure the bundle’s per-unit price is lower than the single unit’s per-unit price. On Amazon and Walmart it is common to find 3-packs listed at a higher per-unit cost than the single. The customer notices. The conversion suffers. Always check the math from the customer’s perspective.
5. Run a 2-week test before scaling. Watch the order count, the contribution per order, and the return rate. Bundle return rates sometimes run slightly higher than single-unit rates because the customer is less certain about committing to multiples. Make sure your model held up before you commit your inventory.
6. If you are selling on a marketplace like Amazon, make sure you are the brand owner. You do not want to continually be fending off other sellers who try to undercut you on listings you created. The only way to do that is to join the Brand Registry.

3. Frequently asked questions

4. Quick reference: what to avoid and what to apply

The Problem with Borrowing Retail Discount Math

When founders use discounts, they believe they can sell more units at a smaller profit margin and therefore make more money in total. In their minds, selling more units makes more money in total.

This belief is strengthened by watching how much money big-box retailers like Walmart and Costco make each year. If they do it, it must work, right?

The problem is that retail discount math is very different from ecommerce discount math. They are not the same.

In retail, sales often only have two variable cost line items: the product cost and the credit card fee. That is it. If you cut 25% off the price you still walk away with money.

In ecommerce, the same sale can have up to six variable cost line items. We call these the Six Profit Levers:

Since all six of these levers take a slice of the profit you make on each sale, you need to keep them all in mind before you run any promotion that uses a discount.

In this article, you will learn how to model your own discount campaign so you actually make more money.

1. Example showing you the numbers

The Discount Model

Here is the same skincare order modelled at six discount tiers, holding every other lever flat. Read the contribution row at the bottom — that is the only number that matters.

How the costs stack

Read the bottom row. Every 5% of discount costs you $5 of contribution per order. By the time you hit 15% off, contribution is at zero — the order is a wash. Past 15%, every sale loses you money. The 25% Black Friday promotion turns into a $10 loss on every single jar shipped.

Three patterns to spot on the chart:

1. The discount slice grows at every tier.
2. The fixed-per-unit levers underneath (product, ad spend, warehousing and shipping, payment processor) do not move at all — they sit there absorbing nothing.
3. The cost stack crosses the $100 selling-price line at exactly 15% off. That is the threshold. Past it, every order is a loss, and the loss grows by $5 for every additional 5% of discount.

2. How to model your discounts

Discounts are not inherently bad. They are a useful tool, but they need to be used with discipline. This is how you should treat them:

1. Model before you implement. The best way to protect your profits is to model your discounts before you think of implementing them. To do that, you must have access to the other variable cost data.
2. Build the model once. Excel or Google Sheets. Use the Six Profit Levers to build your own cost stack. The output is contribution per order at each discount tier.
3. Run every campaign through the model first. Plug in the proposed discount. Read the contribution line. If it is negative, the campaign is a loss disguised as a sale. Either lift the price, lower the costs, or kill the campaign at the model stage. Not after the books close.

3. Frequently Asked Questions

4. Quick Reference: What to Avoid and What to Apply