Discount Calculator
Calculate the sale price, amount saved, and percentage off for any discount. Works for retail, coupons, and bulk pricing.
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How to use this calculator
Subtract the discount percentage from 100%, then multiply by the original price.
- 1
Enter the original price of the item.
- 2
Enter the discount percentage (e.g. 25 for 25% off).
- 3
The calculator shows the sale price and total amount saved.
Frequently asked questions
How do I calculate a percentage discount in my head?
For 10% off, move the decimal one place left. For 25% off, halve the price then halve again. For 20% off, find 10% and double it. Example: 20% off $80 = $8 × 2 = $16 saved → $64 sale price.
How do I find the original price from the sale price?
Divide the sale price by (1 − discount/100). Example: sale price $75, 25% off → original = 75 / 0.75 = $100.
Can I stack two discounts?
Yes, but they don't add up directly. A 20% discount followed by another 10% discount is not 30% off. It is: 100% × 0.80 × 0.90 = 72%, so 28% off total.
What's the difference between a discount and a cashback?
A discount reduces the price upfront. Cashback gives money back after purchase, often as store credit. The net saving can be the same, but cashback requires the full payment first.
How discount calculations work
Calculating sale price from a percentage off
Multiply the original price by the discount percentage, then subtract from the original price. For a 30% discount on $200: savings = $200 × 0.30 = $60; sale price = $200 − $60 = $140. Equivalently, multiply $200 × 0.70 = $140.
Finding the discount percentage from two prices
Divide the savings by the original price and multiply by 100. If an item was $80 and is now $60, savings = $20, discount = (20 / 80) × 100 = 25%.
Black Friday and seasonal sale tips
Compare the "original" price against recent historical prices — retailers sometimes inflate the reference price before a sale. Use price-tracking browser extensions or check camelcamelcamel.com for Amazon history. A genuine 50% off is rare; 20–30% is typical for major sale events.
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →