How to calculate percent change in 3 easy steps
- 1
Enter the starting value
The original amount or measurement.
- 2
Enter the final value
The amount after the change.
- 3
Read the result
The percent increase or decrease appears instantly.
Why use the percent change calculator tool from Super Utility Hub?
From salary raises to stock moves to test scores, percent change tells you how much a value moved relative to where it started — the fair way to compare changes of different sizes.
Enter a starting and a final value to get the percent increase or decrease, complete with the absolute change.
- Processes everything in your browser — no upload servers involved
- Free forever with unlimited uses
- Works on Windows, macOS, Linux, Android and iOS
- No watermark or branding on your output, ever
Frequently asked questions
What is the formula?
Percent change = (final − start) ÷ |start| × 100. Dividing by the absolute starting value keeps results consistent for negative values.
Why can't I use a zero starting value?
A percent is always relative to a starting point. With a start of zero there is no meaningful ratio, so the calculator asks for a non-zero start.
Is a 10-point change the same as 10%?
No. A change from 50 to 60 is 10 points but a 20% increase. The calculator always reports the percentage, which is relative.