Discount Calculator
Calculate sale prices and savings from any discount percentage.
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% off
Common Discounts
| Discount | You Pay | Quick Math |
|---|---|---|
| 10% off | 90% | Price × 0.9 |
| 20% off | 80% | Price × 0.8 |
| 25% off | 75% | Price ÷ 4 × 3 |
| 33% off | 67% | Price × 2 ÷ 3 |
| 50% off | 50% | Price ÷ 2 |
| 75% off | 25% | Price ÷ 4 |
How to Calculate Discounts
Finding the Sale Price
Sale Price = Original × (1 - Discount%)Example: 30% off $50 = $50 × 0.70 = $35
Finding the Savings
Savings = Original Price × Discount%Example: 30% off $50 = $50 × 0.30 = $15 saved
Frequently Asked Questions
How do I calculate a discount percentage?
Multiply the original price by the discount percentage as a decimal. For example, 25% off $80: $80 × 0.25 = $20 discount. Final price: $60.
How do I find the original price before a discount?
Divide the sale price by (1 - discount percentage as decimal). Example: $60 after 25% off: $60 ÷ 0.75 = $80 original.
How do I calculate multiple discounts?
Apply discounts one at a time. 20% off then 10% off: $100 × 0.80 = $80, then $80 × 0.90 = $72. This is NOT the same as 30% off.