Discount Calculator

Calculate discounts and final price instantly.

How to Do It Manually

Multiply the original price by the discount percentage and subtract from the original price.

Sale Price = Original Price × (1 − Discount% ÷ 100)
  1. Divide the discount percentage by 100.
  2. Subtract from 1 (e.g. 25% off → 1 − 0.25 = 0.75).
  3. Multiply the original price by that factor.

Frequently Asked Questions

How do I calculate 30% off $80?

80 × (1 − 0.30) = 80 × 0.70 = $56.

How do I stack discounts?

Apply each discount sequentially. A 20% then 10% discount is not 30% off — it is 1 × 0.80 × 0.90 = 28% off total.