Work out net profit margin, markup, contribution per unit and break-even units after product costs, delivery, platform fees, payment fees, ads, overhead and refunds.
Business
Net profit margin
0.00%
Methodology
The calculator estimates gross sales from unit price and quantity, subtracts a refund allowance, then removes product cost, shipping, percentage fees, fixed per-sale fees, ad spend and overhead. It calculates net margin, markup on direct cost, contribution per unit and break-even units.
Worked example
A product can look profitable when only unit cost is compared with sale price, but platform fees, card fees, ad spend, delivery and refunds can reduce the true margin. The advanced result shows each layer separately.
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Common questions
Margin compares profit with revenue. Markup compares profit with cost. They are not the same percentage.
Yes. Include platform, payment, delivery and advertising costs if you want a closer net margin estimate.
Yes. Treat labor, subcontractor cost or delivery expense as the unit cost and overhead inputs.
This is a planning calculator, not an accounting ledger. It excludes inventory timing, payroll allocation, tax filings, chargebacks, multi-currency settlement, cost of capital and full profit-and-loss reporting. This calculator is for planning and education, not personal financial advice.