Discount Calculator
Formula
Sale Price = Original × (1 − Discount% ÷ 100)
To calculate a discounted price, multiply the original price by the discount percentage divided by 100 to get the savings. Subtract the savings from the original price to get the final sale price.
Frequently Asked Questions
How do I calculate 20% off?
Multiply the price by 0.20 to get the discount amount, then subtract from the original. $100 × 0.20 = $20 off, so the sale price is $80.
What is 30% off $50?
$50 × 30% = $15 off. Sale price: $35.
How do I calculate the original price from a sale price?
Divide the sale price by (1 − discount/100). If something is $60 after 25% off: $60 ÷ 0.75 = $80 original.