Quick discount math: final price, savings, and original price.
The Discount Calculator helps you understand sale pricing fast: what you pay after a discount, how much you save, or what the original price was before the discount.
It’s great for comparing promotions, checking receipts, and planning budgets when prices are shown with “% off”.
Final price = original price × (1 − discount/100).
Example: $120 with 25% off → 120 × 0.75 = $90.
No. A percent discount depends on the original price. “20% off” means subtracting 20% of the original price, not a fixed amount.
Stacked discounts apply one after another. Example: 20% off then 10% off → price × 0.8 × 0.9 = price × 0.72.
That’s a 28% total reduction, not 30%.
Original price = final price ÷ (1 − discount/100).
If the discount is 100%, the original price can’t be recovered because every original price becomes 0 after a 100% discount.
It depends on the store and local rules. Many receipts calculate tax on the discounted price, but some promotions apply after tax.
If you want to model both: (1) discount first, then add tax, or (2) add tax first, then discount.
Rounding can cause small differences (especially when tax is calculated per item, then summed). Also, some stores round the discount amount to the nearest cent before applying tax.
This calculator is for percent discounts. For a fixed coupon, subtract the coupon amount from the price first (or after the percent discount, depending on the store’s rules), then compute tax if needed.
Not directly. You can convert many deals into an effective discount, though. Example: “Buy 1 get 1 50% off” is an average 25% off if you buy two identical items.