MATH & NUMBERS
Percentage Change Calculator
Find the percentage increase or decrease between two values.
100% free
No sign-up
Private — runs in your browser
Instant results
KEY TAKEAWAYS
- Find the percentage increase or decrease between two values.
- Free to use — no sign-up, no account and no usage limits.
- Runs entirely in your browser, so the numbers you enter stay private.
- Works on desktop and mobile with instant, accurate results.
Last updated: June 2026
About the Percentage Change Calculator
Enter an original and a new value to get the percentage increase or decrease and the absolute change.
Frequently asked questions
Is percentage change the same as percentage difference?
Not quite — change is relative to the original value; difference is relative to the average of the two.
Free online tool from ConvertFleet. Calculations run entirely in your browser — nothing you type is sent anywhere. Results are estimates for general guidance only.