Formula and method
FormulaSale price = original price × (1 − discount ÷ 100).
The discount amount is the selected percentage of the original price; subtracting it gives the sale price.
Worked example
20% off 250 saves 50, giving a sale price of 200.
How to use this calculator
- Enter the values using the labels and units shown.
- Review the live result and supporting details.
- Check the formula, example and assumptions before using the answer.
Assumptions and limits
- No tax, shipping or stacked discounts are included.
Reference
Formula reviewed 2026-07-15