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Percentage Increase / Decrease Calculator
Calculate the percentage increase or decrease between two numbers.
How to use this tool
- 1Paste or type your input above.
- 2The result updates instantly.
- 3Copy the output with one click.
Frequently asked questions
What is the percentage change formula?+
Percentage change = (new β old) Γ· old Γ 100. A positive result is an increase; a negative result is a decrease.
Is my data private?+
Yes. The tool runs entirely in your browser β nothing you paste or type is uploaded to a server.
Learn more
- Percentage Increase / Decrease Calculator: worked examples
- Percentage formulas explained
- Common percentage increase calculator mistakes