Solvria — Generated on 8/30/2026
Percentage Change Calculator
Find the percentage increase or decrease between two values.
Enter your values to calculate your result.
Formula
Percentage Change = (Final Value − Initial Value) ÷ |Initial Value| × 100
The change is measured relative to the initial value. A positive result means an increase; a negative result means a decrease.
Example
Going from 50 to 75 is a 50% increase. Going from 100 to 80 is a 20% decrease.
Frequently Asked Questions
Why does the initial value need to be non-zero?
Percentage change from zero is mathematically undefined, since it would require dividing by zero.