How to use this tool
- Enter the old value.
- Enter the new value.
- Calculate to see change percentage and difference.
Percentage Change Calculator
Calculate increase or decrease percentage between two numbers.
Topic: math
Inputs
Results
Useful for price changes, traffic growth, KPI tracking, and comparing old versus new values.
Formula
change% = ((new - old) / old) * 100 Show Calculation Logic
Displays only the relevant calculation/logic function for this tool.
FAQ
What does the Percentage Change Calculator do?
Percentage Change Calculator helps you calculate increase or decrease percentage between two numbers.
Is this tool free to use?
Yes. You can use this tool for free directly in your browser.
Are my inputs sent to a server?
Your inputs stay in your browser while using this tool.