Discount Calculator: Sale Price & Stacked Discounts
Calculate sale price, money saved, and effective percentage discount. Apply one discount or two sequential discounts without sending your inputs to a server.
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Calculate one or two sale discounts
Enter zero for the second discount when only one applies. With two discounts, the second reduces the already-discounted price. This differs from adding the two percentages together.
Final price = original × (1 − first discount ÷ 100) × (1 − second discount ÷ 100).
Savings = original − final price.
Effective discount = 100 × (1 − remaining price fraction).
Example: 20% off, then another 10%
An original price of 100 falls to 80 after the first discount and 72 after the second. You save 28, an effective discount of 28%. The combined discount is not 30%.
Assumptions and rounding
Rates range from 0% to 100%. Calculations retain precision between discounts and round displayed money to two decimals. A retailer that rounds each stage may quote a slightly different amount. Taxes, shipping, coupons with fixed amounts, and minimum-spend rules are excluded.
About this tool
Prepared by the UtilitiesWeb team at The Alpha 1 Company. Review results before using or sharing them. Business calculations are educational estimates and do not replace professional accounting, tax, or legal advice.
Methodology updated: 1 November 2026. Inputs are processed locally; clearing or leaving the page releases the working result.