Add the requested inputs
Use the labelled fields in the workspace above. If example values are provided, try them first or replace them with your own.
Money & business · Free online tool
Percentage change calculator
Compare an old and new value to measure the percentage increase or decrease.
3 guest runs per rolling 24 hours10 with a free accountPrivate inputsMobile-friendly
Percentage change calculator workspace
Runs locally in your browser
Result
Percentage change—
Absolute change—
Direction—
Use it with confidence
How to use the percentage change calculator.
Calculate and review
Use the main action when needed. Percentage change = (new − old) ÷ |old| × 100.
Try a worked example
A move from 80 to 100 is a 25% increase; a move from 100 to 80 is a 20% decrease.
Check the assumptions
There is no finite percentage change from a starting value of zero; use the absolute change instead.
Helpful answers
Percentage change calculator FAQs.
Is the percentage change calculator free?
Yes. Guests receive 3 runs per rolling 24 hours, verified free accounts receive 10, and Premium subscribers receive unlimited normal use.
Does UtilHub upload or save my inputs?
No. This tool runs in your browser and UtilHub does not receive or store the values you enter. Your browser or device may still retain normal local history or form data.
How does this percentage change calculator work?
Percentage change = (new − old) ÷ |old| × 100.
What should I check before using the result?
There is no finite percentage change from a starting value of zero; use the absolute change instead.