Percentage Off & Discount Calculator
This percentage off calculator tells you the sale price and how much you save in a snap. Type the original price and the percent off to see what you'll pay, or flip it around to find the discount percent or the original price before the sale. It's the quick way to check a deal at the shops, and every answer shows the steps so you can trust the number.
- 3 modes
- Sale price + you save
- Find % off
- Find original price
- Steps shown
Last updated June 16, 2026 Sale price = price × (1 − percent ÷ 100) Reviewed by the Calcowa math team
Enter the numbers to see the answer.
80 − (80 × 25 ÷ 100) = 60
What is a percentage off?
A percentage off, or discount, is the slice of a price you don't have to pay. If something's 25% off, you keep a quarter of the price and pay the other three quarters. You find the saving by taking that percent of the price, then you subtract it to get the sale price. So 25% off 80 saves 20, and that's a sale price of 60.
How do you calculate a discount?
Here's how to take 25% off an 80 item:
- 1
Find the discount80 × 25 ÷ 100 = 20, so the saving is 20.
- 2
Subtract it80 − 20 = 60.
- 3
Read the sale priceYou pay 60, and you save 20.
Shortcut: for 25% off, just multiply the price by 0.75. For any percent off, multiply by 1 minus the percent as a decimal.
How to find what percent off something is
Sometimes the tag shows the old and new price but it doesn't show the discount. To find the percent off, subtract the sale price from the original, divide by the original, and multiply by 100. An item marked down from 80 to 60 is (80 − 60) ÷ 80 × 100 = 25% off. The "Find the % off" mode does this, which is handy when you're checking how good a sale really is.
How to find the original price before a discount
If you know the sale price and the percent off, you can find what it cost before. Divide the sale price by 1 minus the percent as a decimal. A 60 item that's 25% off was 60 ÷ 0.75 = 80 before the markdown. The "Find original price" mode handles this reverse step, which is handy when a receipt only shows what you've paid.
How much is a percentage off?
Here are some common discounts worked out, so you can sanity-check a price fast. For 20% off, you pay 80% of the tag.
| Discount | Result |
|---|---|
| 10% off 50 | Save 5, pay 45 |
| 20% off 80 | Save 16, pay 64 |
| 25% off 120 | Save 30, pay 90 |
| 30% off 200 | Save 60, pay 140 |
| 50% off 90 | Save 45, pay 45 |
Do two discounts add up?
No, stacked discounts don't simply add. A "20% off then an extra 10% off" deal isn't 30% off, because the second cut applies to the already-reduced price. On a 100 item you go 100 → 80 → 72, which works out to 28% off in total. That's a percent of a percent, and the percentage calculator can stack them for you.
Frequently asked questions
Is a discount the same as a percentage off?
Yes, when the discount is given as a percent. A "30% off" sign and a "30% discount" mean the same thing: you'll pay 70% of the price. Some discounts are a flat amount off instead, like 10 off, and those are just subtracted straight from the price.
Multiply the price by the percent and divide by 100 to get the savings, then subtract that from the price. For 25% off 80, the saving is 80 × 25 ÷ 100 = 20, so you pay 80 − 20 = 60. A shortcut is to multiply by 0.75 for 25% off.
Take the original price, work out the discount amount, and subtract it. So 30% off a 200 item is a 60 discount, leaving a sale price of 140. The "Take % off" mode above does it the second you've typed the price and the percent.
Subtract the sale price from the original, divide by the original, and multiply by 100. If a 80 item is now 60, that's (80 − 60) ÷ 80 × 100 = 25% off. Use the "Find the % off" mode and enter both prices.
Divide the sale price by 1 minus the percent as a decimal. A 60 price after 25% off was 60 ÷ 0.75 = 80 before the sale. The "Find original price" mode reverses the discount for you, so you don't have to.
Twenty percent off means you'll pay 80% of the price. So 20% off 50 saves 10 and costs 40, and 20% off 80 saves 16 and costs 64. The quick trick is to multiply the price by 0.8.
No, they don't add to 30%. The second cut comes off the already-lower price, so 20% off then 10% off a 100 item gives 100 → 80 → 72, which is 28% off overall. Stacked discounts always end up a little less than you'd expect.
Related calculators
More ways to work with percentages and prices.
Every percent in one tool.
Percentage increasePrice rises and raises.
Percentage differenceCompare two prices fairly.
Checking a deal?
Switch modes above, or open the full percentage calculator.