Percentage Change Calculator

Calculate the starting value, final value, and percentage change directly in your browser. Increases, decreases, and reverse calculations work without switching modes.

No upload

Starting value, final value, and change

Edit any two fields. The third is calculated automatically.

The two most recently edited fields remain inputs.

Enter any two of the three values.

Swap is only available when starting and final values are greater than 0.

Change

Direction
Signed percentage change
Percentage change magnitude
Absolute change
Absolute change magnitude

Ratio and reverse change

Change factor
Final value relative to starting value
1% of the starting value
Reverse change to starting value