How this calculator works
This calculator starts from what you actually paid. Enter the sale price and the discount, and it shows the original price and how much you saved. It's handy for checking a deal, keeping track of savings or comparing offers.
With a discount, you pay what's left after the percentage comes off. After 30% off you pay 70% of the original, so the original price is the sale price divided by 0.70.
Worked example: paid $56 at 30% off
- Work out the share you paid: 100% − 30% = 70%, or 0.70.
- Find the original price: 56 ÷ 0.70 = 80.
- Find the savings: 80 − 56 = 24.
The original price was $80 and you saved $24.
Quick reference: a $60 sale price at different discounts
| Discount | Original price | You saved |
|---|---|---|
| 10% off | $66.67 | $6.67 |
| 20% off | $75.00 | $15.00 |
| 25% off | $80.00 | $20.00 |
| 40% off | $100.00 | $40.00 |
| 50% off | $120.00 | $60.00 |
| 60% off | $150.00 | $90.00 |
Common mistake
Adding the discount percentage to the sale price. $56 + 30% = $72.80, which is not the original price. The discount was taken from the original, so you have to divide, not add.
Questions people ask
- How do I find the sale price from the original price?
- Multiply the original price by the share you pay. $80 at 30% off is $80 × 0.70 = $56.
- Are two discounts of 20% the same as 40% off?
- No. 20% off and then another 20% off means you pay 0.8 × 0.8 = 64% of the price, which is 36% off in total, not 40%.
- Does this include sales tax?
- No. In many places sales tax is added after the discount. Use the sales tax calculator on the sale price to see the final amount.
Learn more
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