Start from the Margin You Need
Cost-plus pricing starts with product cost: cost × (1 + markup) = price. It is simple, but the resulting price may not leave enough contribution after payment fees, fulfilment, inbound shipping, duties, returns and advertising. A markup is not a margin: a 50% markup produces a 33.3% gross margin before those other costs.
Margin-first pricing reverses the sequence. First define the contribution required from each delivered order: the amount left after all variable order costs, including advertising, to cover operating costs and the profit you require. Then calculate the price that leaves that contribution. If non-ad variable costs are C, ad cost is A, and required contribution is T, the basic logic is Price = C + A + T. Where costs are percentages of price, solve the equation for Price rather than adding them afterward. This makes each assumption visible; test the calculation in the product pricing calculator.
- Act on cost-plus pricing when you need a quick floor based on unit cost.
- Act on margin-first pricing when the order must fund a defined contribution after its full variable cost.
| Method | Starting point | Decision it supports |
|---|---|---|
| Cost-plus | Product cost and markup | What price follows from a chosen markup? |
| Margin-first | Required contribution per order | What price is needed to fund the target contribution? |
Showing the Price in the US
Show activewear prices in US dollars and tax treatment before checkout. If tax is separate, a $100 product produces $100 product revenue; the customer pays $100 plus calculated tax, held as a tax liability, not revenue. If tax-inclusive display is required, show the total and included tax; presentation may differ by destination.
Check delivery state and locality, sales-tax registration or nexus, product taxable status, and marketplace collection. Use the destination state’s department of revenue or equivalent official tax agency and relevant local authority for the applicable treatment. South Dakota v. Wayfair, decided June 21, 2018, upheld a law covering sellers that deliver more than $100,000 of goods or services into the state each year or make 200 or more separate transactions, and overruled the physical presence rule (Legal Information Institute, Cornell Law School). That decision does not replace checking the rules for each selling location. See the US seller guides for the operating checklist (Source: Legal Information Institute, Cornell Law School).
Worked example with sample numbers
This example is illustrative. It uses sample numbers for a activewear store selling in the US. They are made up to show the method, they are not a benchmark, and your own figures will differ.
Formula: Net price needed = (variable costs + fixed fee) / (1 - target margin - percentage fee).
| Target margin | Net price needed | Check |
|---|---|---|
| 15.0% | $42.04 | $6.31 left per order |
| 25.0% | $47.85 | $11.96 left per order |
| 35.0% | $55.51 | $19.43 left per order |
| 45.0% | $66.10 | $29.75 left per order |
Run the same sum with your own numbers in the free calculator, or browse guides for sellers in the US and more activewear guides.
General information only: tax, duty and import rules change and depend on your situation, so check with an accountant or the official source before acting.
Eligible Shopify stores can see these numbers for their own store through the Founding 10,000 offer.
Read the Worked Pricing Example Correctly
Read the worked example from left to right. The inputs are the product cost, intended selling price, tax treatment, payment cost, and any other variable cost included in the calculation. Confirm that every input uses the same currency and that the cost basis is per unit, not for a full order or shipment.
The core calculation is: selling price minus product cost, payment cost, and other included variable costs equals contribution. Divide that contribution by the relevant revenue base to get the resulting margin. This is a margin calculation, not a markup calculation: markup compares profit with cost, while margin compares it with revenue.
Treat the tax line according to how it is collected. Tax added at checkout is generally money collected for remittance, not product revenue or profit; tax included in the displayed price must be separated before assessing the margin. Payment costs belong in the calculation because they reduce what the sale leaves behind. The final margin therefore shows the economics of the sale after the stated deductions, not merely the gap between price and product cost.
When a Higher Price Is the Wrong Move
A higher price is the wrong move when cost, not willingness to pay, is the constraint. If contribution after advertising is weak because landed cost absorbs too much of the selling price, reduce supplier, freight, duty, packaging or returns cost first: cutting landed cost by $4 improves contribution by $4 without raising the price. If conversion falls at the current price while product views are healthy, improve fit guidance, imagery, reviews, delivery clarity or checkout before raising price. If discounts generate orders but little contribution, reduce blanket promotions and test narrower, targeted incentives. If a collection has weak product-level profitability and slow remaining stock, narrow the assortment: stop replenishing weak variants and concentrate spend and inventory on profitable products. Raise price only when costs are controlled, conversion is sound and customers buy without excessive discounting.
| Signal | Right action |
|---|---|
| Contribution after advertising is low because costs are high | Reduce landed or variable cost |
| Traffic is present but conversion is weak | Improve conversion before repricing |
| Orders depend on discounts | Test smaller or more targeted promotions |
| Some products tie up stock without profit | Narrow the assortment |
A Pricing Review Routine
Run the review on a fixed cadence and at product level. Start with list price, then reconcile realised revenue from delivered orders: subtract discounts, refunds and returns, and exclude sales tax collected for remittance. Add product cost, fulfilment, payment fees and any return handling cost. If tax is included in the displayed price, separate it before calculating revenue; if it is added at checkout, do not treat it as revenue.
Use the same calculation for every SKU and compare the result with your target contribution. For illustration only, a $100 list price less a $10 discount gives $90 before tax; subtracting $28 product cost, $8 fulfilment and $3 payment fees leaves $51 contribution before advertising. Review the result after a meaningful batch of delivered orders, not from one unusually large return or promotion. The product pricing calculator can standardise the arithmetic.
| Measure | Calculation | Use it to |
|---|---|---|
| List price | Displayed selling price before discount | Check positioning and promotion room |
| Net revenue | Delivered-order sales minus discounts, refunds and tax collected | See what the sale actually produced |
| Contribution | Net revenue minus product, fulfilment, payment and return costs | Decide whether the SKU's economics support its price |
Use Each Measure for the Decision It Answers
Gross margin, (net sales − cost of goods) ÷ net sales, tests product economics before selling expenses, excluding payment fees, fulfilment, returns and advertising. Contribution margin, contribution profit ÷ net sales, tests variable selling costs. Net sales means realised revenue after discounts and refunds, from delivered rather than cancelled orders: a $100 list price less a $10 discount and $20 refund gives $70.
AOV, net sales ÷ orders, assesses basket size, bundles, thresholds and cross-sells, not profitability. Sell-through, units sold ÷ units available during the period, measures inventory movement for markdown and replenishment decisions; remaining stock still carries cost. Cash contribution, cash collected minus assigned cash payments, including inventory, fulfilment, fees and advertising, supports liquidity planning when timing matters, separately from accounting margin. Match each measure to its decision; no percentage gives a complete profitability view.
Activewear pricing should be checked backwards from the contribution the business needs, then reconciled with the customer-facing US price and the applicable tax treatment. A regular review makes clear whether the next decision is to change price, reduce cost, adjust promotion, or leave the price unchanged.
Sources
- South Dakota v. Wayfair, Inc., 585 U.S. 162 (2018) (Legal Information Institute, Cornell Law School, checked 26 October 2026).
- Fact sheet: suspending the de minimis exemption for commercial shipments globally (The White House, checked 26 October 2026).
- CBP ready to enforce end of de minimis loophole (U.S. Customs and Border Protection, checked 26 October 2026).
- Indefinite suspension of the de minimis exemption for merchandise arriving through all modes other than the international postal network (Federal Register, checked 2 November 2026).
- Adjusting imports of automobiles and automobile parts into the United States (Federal Register, checked 2 November 2026).
How this page was made: drafted with AI from a brief, then checked by automated rules for arithmetic, sources and duplication. The sample numbers were calculated, not reported.