How it works
Sale price = original price × (1 − discount rate). Profit subtracts selling fees and unit cost from that price.
The calculator runs locally in your browser. Values are estimates and are not sent to Margin Manifest.
Discount Calculator
Check the sale price, customer savings, and profit left after a promotion. Change any input below and the estimate updates instantly.
Before you decide
This estimate excludes fixed overhead, tax, returns, coupon funding rules, and minimum advertised price restrictions.
Last reviewed: October 2026. Always verify current account-specific rates.
Working note
Make the estimate useful.
A discount reduces revenue immediately, while most product and fulfillment costs stay unchanged. That is why a 20% discount can reduce profit by much more than 20%. Model the promotion before deciding how much volume must increase to compensate.
Questions from the desk
Discount Calculator FAQ
Why does profit fall faster than price?
The discount comes out of the portion that previously covered both profit and fixed costs, while unit costs usually remain the same.
Does the calculator include tax?
No. Enter prices consistently as net or gross according to the decision you are making and account for tax treatment separately.
How do I compare two promotions?
Open two share links with different discount rates and compare sale price, profit, and margin side by side.
Keep checking the whole margin.
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