MarginTally Open calculators

Calculator 01 / Core order economics

Ecommerce profit calculator.

See what one order leaves after product, fulfillment, payment, platform, return, advertising, and fixed costs.

Revenue

Variable costs

Risk and target

What this result includes

The model allocates monthly fixed costs per expected order and treats return risk as an expected loss. Maximum ad spend is the amount left after non-ad costs and your target profit.

Net margin = net profit ÷ order revenue

Use actual payment and platform statement rates. This general calculator does not preload marketplace fees.