Percent Off Calculator
Percent of a number, change, discounts
- Original price
- 80
- You save
- − 20
- Price after discount
- 60
80 − 80 × 25 ÷ 100 = 60
Discount from two prices
(120 − 90) ÷ 120 × 100 = 25
25%
Formula: part = whole × percent ÷ 100 · Updated Oct 22, 2026
Enter the price and the percent off to see the sale price and how much you save. Add a second discount for "extra 10% off" deals, or work out the discount from two prices.
How to use the Percent Off Calculator
- Type the original price and the discount %.
- Optional: an extra discount that is applied after the first one.
- Below, enter an original and a sale price to find the percent off.
Percent off formula
Sale price = price × (1 − discount ÷ 100). 25% off $80.00 = $80.00 − $20.00 = $60.00.
Percent off chart for $100
| Discount | You save | You pay |
|---|---|---|
| 5% | $5.00 | $95.00 |
| 10% | $10.00 | $90.00 |
| 15% | $15.00 | $85.00 |
| 20% | $20.00 | $80.00 |
| 25% | $25.00 | $75.00 |
| 30% | $30.00 | $70.00 |
| 35% | $35.00 | $65.00 |
| 40% | $40.00 | $60.00 |
| 50% | $50.00 | $50.00 |
| 60% | $60.00 | $40.00 |
| 70% | $70.00 | $30.00 |
| 75% | $75.00 | $25.00 |
Double discounts do not add up
"20% off plus an extra 10%" is 28% off, not 30%: the second discount applies to the already reduced price. Two 50% discounts give 75% off, not 100%.
Related guides
Frequently asked questions
How do I calculate 20% off?
Multiply the price by 0.8. $45.00 with 20% off is $36.00.
How do I find the percent off from two prices?
Subtract the sale price from the original, divide by the original and multiply by 100. $120 → $90 is 25% off.
Is the discount taken before or after sales tax?
In the US, sales tax is charged on the discounted price, so take the discount first.
More calculators
Results are rounded for display; the calculation itself uses full precision. Tax and price results are estimates — check the official rate for your case.