Discount Calculator

Calculate discount price and savings free online from original price and discount percentage. See the exact final price and amount saved instantly.

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How to Use This Tool

1
Enter the original priceAdd the pre-discount price
2
Enter the discount percentageThe percentage being taken off
3
See the final price and savingsBoth calculated instantly

Stacked Discounts Multiply, They Don't Add

A common shopping confusion: "20% off, plus an extra 10% off" sounds like 30% total savings, but each discount applies to the already-reduced price, not the original. The actual combined effect is a 28% total discount -- a meaningful difference when comparing deals, especially on larger purchases.

Working Backward From a Sale Price

Sometimes you see a sale price and the discount percentage but want to know the original price for comparison shopping. Dividing the sale price by (1 minus the discount as a decimal) reverses the calculation cleanly, letting you reconstruct the pre-discount price from what's actually displayed on a sale tag.

Percentage Versus Flat Discounts

A percentage discount scales with the item's price -- bigger absolute savings on more expensive items at the same percentage. A flat dollar discount gives identical absolute savings regardless of price, which can actually represent a higher effective percentage on cheaper items. Understanding which type a "deal" actually uses helps evaluate whether it's genuinely favorable for your specific purchase.

Frequently Asked Questions

Final Price = Original Price x (1 - Discount% / 100). A 25% discount on a $80 item means multiplying by 0.75, giving $60 -- the discount percentage represents how much is subtracted, not the remaining price directly.
Each discount applies to the already-reduced price from the previous discount, not the original price, so stacked percentage discounts compound multiplicatively rather than adding linearly -- 20% then 10% off results in a 28% total discount, not 30%.
Original Price = Sale Price / (1 - Discount% / 100). This reverses the standard formula, useful when a sale tag shows the discounted price and percentage but not the pre-sale price.
Yes, for the total price across multiple items at the same discount rate -- enter the total original price for all items combined, and the calculation applies the same percentage logic to that total.
Yes -- a percentage discount scales with price (bigger savings on more expensive items), while a flat dollar discount provides the same absolute savings regardless of price. This calculator handles percentage-based discounts specifically.
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