Percentage Change Calculator
Find the percentage increase or decrease between two values.
Percentage Change
Find the percentage increase or decrease between two values.
Fromto
From 100 to 125
25% increase
How it works
Enter the starting (old) value and the ending (new) value.
The difference between the new and old value is divided by the old value, then converted to a percentage.
The starting value cannot be zero — percentage change divides by the starting value, and division by zero has no defined result.
Formula
percentage change = ((new − old) ÷ old) × 100
Worked example: Going from 50 to 75 is a 50% increase