Tool 02 / Pricing
Set a price that survives every fee.
A markup is not the same as a margin. Work backward from the net margin you want after production cost, packaging, shipping support, marketplace fees, and payment fees.
Set your selling assumptions
Work backward so fees do not silently erase your margin.
Pricing logic
Margin is measured from revenue, not cost.
If a product costs $10 and you add a 30% markup, the price becomes $13—but the gross margin is only 23.1%. Platform fees reduce it again. This calculator solves for the price at which your selected percentages can all be paid from revenue.
Before you publish a price
Add sales tax only when it is a true seller cost in your market. Keep free-shipping support separate from postage paid entirely by the buyer. Test the result against real customer willingness to pay; a mathematically profitable price is not automatically a marketable price.