E-Commerce Markup and Profit Margin Calculator
Calculate net profit, markup, profit margin, and break-even price from product cost, sale price, commission, and shipping.
Formula
Net profit = sale price − product cost − (sale price × commission) − shipping − other costs.
Source / method note
Profit margin is net profit divided by sale price; markup is net profit divided by product cost.
Legal / official rate note
Platform commissions and tax treatment vary; enter all current deductions explicitly.
