Understand the calculation
Useful when you know the sale price and advertised discount but want to reconstruct the pre-sale price.
PercentWise performs the arithmetic directly in your browser and shows a readable result without sending the numbers you enter to a server. The formula above is the core relationship used for this calculator.
ExampleSale price 600 after 25% off
Original price = 600 ÷ 0.75 = 800
ExampleSale price 90 after 10% off
Original price = 90 ÷ 0.90 = 100
Using the result
Check that the values you enter use the same units and that the reference value matches the question you are trying to answer. Different percentage formulas can look similar while using different denominators, so choosing the right calculator matters.