Free marketplace profit calculator
See what is left after every marketplace cost.
Enter sales, fees, advertising, product cost, shipping, and refunds to calculate your true operating profit and margin across Amazon, eBay, Shopify, or any other sales channel.
What this calculation includes
Net sales after discounts and refunds
All entered selling and fulfillment expenses
Net profit and operating margin
A transparent line-by-line expense breakdown
Sales tax is excluded because money collected for tax is not operating revenue. This is a planning tool, not accounting or tax advice.
Profit result
Where your sales dollars go
$24,000.00
Collected before tax
$102,500.00
Product revenue + customer shipping
Net sales
$92,000.00
After discounts and refunds
Total expenses
$68,000.00
All entered operating costs
Profit margin
26.1%
Net profit ÷ net sales
Allocation of net sales
Operating expenses$68,000.00
Retained profit$24,000.00
Expense breakdown
Marketplace and payment fees$12,500.00
Marketplace advertising$5,500.00
Cost of goods sold$42,000.00
Shipping and fulfillment$6,500.00
Other operating costs$1,500.00
Net sales − total expenses$24,000.00
Want this math tied to every order automatically?
Inskeep connects sales, fees, refunds, inventory cost, and fulfillment activity so teams can review profit without rebuilding spreadsheets.