AldervantHow to Price Products for a 30% Profit Margin
A 30% margin is not the same as adding 30% to your costs. If you set prices using the wrong formula, you may earn less per sale than you planned.
Margin versus markup
Markup compares profit with cost. Margin compares profit with the selling price. For example, an item that costs $20 and sells for $26 has a $6 difference: a 30% markup on cost, but only a 23.08% margin on revenue—before selling fees.
The 30% margin pricing formula
If your only cost is a $20 unit cost and there are no selling fees, the selling price for a 30% contribution margin is:
At $28.58, the contribution is $8.58, approximately 30.02% of the selling price. Rounding down to $28.57 would fall slightly short of a full 30%.
Include marketplace fees before setting your price
Percentage fees make the calculation different because the fee grows as the price grows. With a $20 unit cost, a hypothetical 10% percentage selling fee, and a $0.30 fixed fee, the required price for a 30% contribution margin becomes:
At $33.84, the hypothetical 10% fee is $3.384, the fixed fee is $0.30, and contribution is $10.156. That is just over 30% of the selling price. Actual fees vary by marketplace and seller; replace these example figures with your own.
Try the free Aldervant pricing calculator to test a different cost, fee, or target margin.
What if your target price looks too high?
A target margin is a planning goal, not a guarantee that buyers will pay the required price. Compare the result with demand, competitor offers, product quality, and the cost of acquiring customers. You may need to reduce unit costs, improve perceived value, or accept a different target. Avoid ignoring advertising, shipping, and returns just to make the numbers appear attractive.
Does a 30% contribution margin mean 30% net profit?
No. Contribution margin reflects the costs included in your per-sale model. Net profit may be lower after fixed overhead, software, insurance, taxes, returns, and other expenses. Use the break-even calculator to understand how contribution helps cover fixed costs.
If you're comparing prices across many products, the Aldervant Seller Profit & Pricing Toolkit ($29) provides an Excel workbook with pricing and product-profit analysis.