🏷️ Discount Calculator
Find the sale price, or work out what discount percentage you're actually getting.
How This Is Calculated
Sale price: Original Price × (1 − Discount% ÷ 100). Example: $80 with 25% off = $80 × 0.75 = $60.
Discount percentage: (Original − Sale) ÷ Original × 100. Example: $80 down to $60 = ($80−$60) ÷ $80 × 100 = 25% off.
Guide: understanding your result
- Sale price = Original price × (1 − discount %). The amount saved is the difference.
- Stacked discounts multiply, they do not add: 25% off and then 10% off is a 32.5% total discount, not 35%.
- In most US states sales tax is charged on the discounted price, not the original price.
Worked example
A $80 jacket at 25% off costs $60.00. An extra 10% coupon brings it to $54.00 — a total discount of 32.5%. With 8% sales tax you pay $58.32.
Stacked discounts: combined effect
| First discount | Second discount | Total discount |
|---|---|---|
| 10% | 10% | 19% |
| 20% | 10% | 28% |
| 25% | 10% | 32.5% |
| 30% | 20% | 44% |
| 50% | 20% | 60% |
Common mistakes to avoid
- Adding stacked percentages together.
- Comparing "% off" deals without checking the reference price.
Frequently asked questions
How do I find the original price from the sale price?
Original price = Sale price ÷ (1 − discount %). A $60 item sold at 25% off was originally $80.
Is "buy one, get one 50% off" a 50% discount?
No. You pay 1.5 items for 2, which is a 25% discount on the pair.
Official sources
Examples are calculated live from the same data the calculator uses and are for education only — they are not financial, tax or investment advice.
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