Calculate sale price, original price, or discount percentage from list price and sale price, and see how much you save on each deal.
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List Price Formula
The calculator uses one of three formulas depending on which value you need to find.
- List Price — the original price before any markdown
- Sale Price — the price after the discount is applied
- Discount — the percent reduction off the list price
Discount must be between 0 and 100. The formulas ignore taxes, shipping, and stacked coupons. For multiple discounts applied in sequence, calculate each step on the new running price, not on the original list price.
Reference Tables
Quick lookup for what you actually pay and what you save at common discount levels.
| List Price | 10% off | 25% off | 40% off | 50% off | 70% off |
|---|---|---|---|---|---|
| $25 | $22.50 | $18.75 | $15.00 | $12.50 | $7.50 |
| $50 | $45.00 | $37.50 | $30.00 | $25.00 | $15.00 |
| $100 | $90.00 | $75.00 | $60.00 | $50.00 | $30.00 |
| $250 | $225.00 | $187.50 | $150.00 | $125.00 | $75.00 |
| $500 | $450.00 | $375.00 | $300.00 | $250.00 | $150.00 |
Stacked discounts do not add. Two markdowns of 20% and 25% taken in sequence work out like this:
| Discounts Applied | Combined Sounds Like | Actual Total Off |
|---|---|---|
| 20% then 10% | 30% | 28% |
| 25% then 20% | 45% | 40% |
| 30% then 15% | 45% | 40.5% |
| 50% then 25% | 75% | 62.5% |
Example Problems
Find the sale price. A jacket lists for $120 at 35% off. Sale price = 120 × (1 − 0.35) = $78. You save $42.
Find the original price. You paid $63 for a pair of shoes marked 30% off. List price = 63 / (1 − 0.30) = $90.
Find the discount percent. A $200 item is on sale for $149. Discount = (1 − 149/200) × 100 = 25.5% off.
Is "list price" the same as MSRP? Close enough for most retail use. MSRP is the manufacturer's suggested retail price. List price is whatever the seller posts as the pre-discount price, which often matches MSRP but does not have to.
Why does the calculator block 100% off when finding the original price? Dividing by zero. If the discount is 100%, the sale price is $0 and any list price would technically work, so the math has no unique answer.
