Free Discount Calculator
Find the final price and the amount you save from a percentage discount.
You save 20.00 (25% off 80.00).
Quick answer
To calculate a discount, multiply the original price by the discount percentage divided by 100 to get the amount saved, then subtract it from the price. For example, 25% off $80 saves $20, for a final price of $60.
Formula & method
saved = price × (discount% ÷ 100); final price = price − saved
- price — the original price
- discount% — the discount percentage, e.g. 25
Examples
- Input
- price = 80, discount = 25%
- Result
- Save $20.00, pay $60.00
- Why
- 80 × 0.25 = 20; 80 − 20 = 60.
- Input
- price = 19.99, discount = 10%
- Result
- Save $2.00, pay $17.99
- Why
- 19.99 × 0.10 = 1.999 ≈ 2.00.
- Input
- price = 120, discount = 70%
- Result
- Save $84.00, pay $36.00
- Why
- 120 × 0.70 = 84; 120 − 84 = 36.
When to use this tool
- Checking a sale price while shopping.
- Comparing two offers to see which saves more.
- Working out a markdown for your own pricing.
Common mistakes
- Stacking two discounts by adding the percentages. 20% then 10% off is not 30% off — it’s 28% off the original.
- Confusing the amount saved with the final price.
- Forgetting that tax is usually applied after the discount.
Frequently asked questions
+ - How do I calculate a discount?
Multiply the original price by the discount percentage divided by 100 to get the savings, then subtract that from the price to get the final amount.
+ - How do two stacked discounts work?
Apply them one after another. 20% off then 10% off a $100 item gives $80, then $72 — a 28% total discount, not 30%.
+ - How do I find the original price from a sale price?
Divide the sale price by (1 − discount/100). For example, $60 after 25% off is 60 ÷ 0.75 = $80.
+ - Is tax applied before or after the discount?
Usually after. The discount lowers the price first, then sales tax is calculated on the reduced amount.
+ - Is anything saved or uploaded?
No. The calculation happens entirely in your browser.
- ✓ Free to use
- ✓ No sign-up required
- ✓ Runs entirely in your browser — nothing is uploaded.
- ✓ Formula and method shown above
Provided “as is” for general information only — results may be inaccurate, so verify before you rely on them. No warranty; use at your own risk.
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