Percentage Change Calculator
Fill in the values and the answer updates as you type.
How the Percentage Change Calculator works
Change = (new − old) ÷ old × 100.
Inputs and results
The Percentage Change Calculator takes 2 inputs and gives 2 results.
What you enter
- From — starts at 80.
- To — starts at 100.
What you get
- Change
- Difference
Example: Percentage Change Calculator with the starting values
With from 80 and to 100, the calculator returns:
| Change | 25% |
|---|---|
| Difference | 20 |
Change any value above and the results update straight away.
Percentage Change Calculator FAQ
How do I use the Percentage Change Calculator?
Enter from and to in the fields, then read change and difference in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Percentage Change Calculator calculate?
Increase or decrease between two values. It returns change and difference from the 2 values you provide.
What values does the Percentage Change Calculator start with?
It opens with from 80 and to 100 so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Percentage Change Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Percentage Change Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.