How to use it
How to use percentage
Solve percent-of, percentage-change, and reverse-percentage questions while keeping the formula visible.
Find 18% of 2,450 or the change from 80 to 92.
- Enter or paste the values you want to work with.
- Review the result and any validation message.
- Copy or download the result when the tool provides that action.
How it works
The selected formula uses the entered base and comparison values, retains full precision internally, and rejects undefined division by zero.
Common uses
- Calculate a percentage of a budget or total
- Measure growth or decline between two values
- Recover an original value from a percentage
What the free tool includes
- Three common formulas
- Transparent calculation