Percentage Calculator
Find a percentage of a number and percentage change.
How to use the percentage calculator
Enter a percentage and a base number to calculate the part. You can also enter a comparison number to see the percentage change from the base.
Example
Enter 25 and 200 to get 50. This means 25% of 200 is 50.
Good to know
A percentage change uses the original number as its denominator, so changes from zero are undefined.