Understand the calculation
Useful when an item or project is sold below cost and you need the loss expressed as a percentage of cost.
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.
ExampleCost 100, sell 82
Loss = 18; loss percentage = 18%
ExampleCost 250, sell 200
Loss = 50; loss percentage = 20%
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.