Everyday & dates
Percentage calculator
Find a percentage of a number, express one value as a percentage of another, or calculate a percentage change.
Your result
Enter your values and calculate. Changing an input clears the previous result.
How this calculation works
Percentage of a number = number × percentage / 100. Share = part / whole × 100. Change = (new − original) / original × 100. A zero denominator has no defined percentage.
Worked example
15% of 200 is 30. A change from 200 to 250 is an increase of 25%.