Discount & Sale Price Calculator

Calculate discounted prices, percentage savings, and find what discount percentage was applied.

Calculate

Original Price

Discount (%)

Sale Price

Used for modes 2 and 3

How to Use

Final price after discount: Enter original price + discount % to get the sale price

Discount % from two prices: Enter both prices to find what % was taken off

Original price from sale price: Enter the discounted price + % off to find the original

Useful for shopping, budgeting, and checking if a "sale" is actually a good deal.

Formula

Sale Price = Original × (1 − Discount%) | Discount% = (Original − Sale) ÷ Original × 100

How do I calculate 20% off $85?

$85 × 0.20 = $17 saving. $85 − $17 = $68. Or: $85 × 0.80 = $68 directly.

How do stacked discounts work?

Stacked discounts are not additive. 20% off then 10% off = 28% total, not 30%. Each discount applies to the already-reduced price.

How do I check if a sale price is accurate?

Use the "Discount % from two prices" mode. Enter the "was" price and the "now" price to verify the claimed discount is correct.

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