Percent Change Calculator

This percentage change calculator lets you find the percent change from your original number to a new number.

Enter your original and new numbers. The calculator will automatically display the percent change.

Enter Values

Original Value

New Value

Calculated Percent Change

Percent Change

Difference

How to Calculate Percent Change

Here's how to calculate percent change:

Find the difference between the new value and the original value.
Divide the difference by the absolute value of the original value.
Multiply the result of step two by 100.

Percent Change Formula

The formula for calculating percent change is:

Percent Change = ( New Value - Original Value ) / |Original Value| * 100

Percent Change vs Percent Increase and Percent Decrease

Percent change can express a change in both directions,, whereas percent increase and percent decrease only go in one direction.

Example 1:

4 to 5 is a 25% change.
4 to 5 is a 25% increase.
4 to 5 is a -25% decrease.

Example 2:

5 to 4 is a -20% change.
5 to 4 is a -20% increase.
5 to 4 is a 20% decrease.