How it works
Percentage change = (new − old) ÷ |old| × 100.
Free calculator / Everyday
Percentage change calculator.
Compare an old number with a new number to see the increase or decrease.
Your numbers
Change any value. The result updates here in your browser.
Your answer
A quick example
Going from 80 to 100 is a 25% increase.
This is a calculation from numbers you supply, not financial or tax advice. Check assumptions before making a decision.