Percentage Change Calculator
Calculate the percentage increase or decrease between two numbers.
Result
Results are estimates for general information only and are not professional advice.
Percentage change
The percentage change between an old and new value is (new − old) ÷ |old| × 100. A positive result is an increase and a negative result is a decrease. It is widely used for prices, statistics and growth rates.
Frequently Asked Questions
What is the Percentage Change Calculator?
Calculate the percentage increase or decrease between two numbers. It runs instantly in your browser and is completely free to use.
What do I need to enter to use the Percentage Change Calculator?
The Percentage Change Calculator asks for the following values (2): From (old value), To (new value). Fill them in and the result appears immediately — the calculation runs on your own device, so nothing you type is sent to a server.
How accurate is the Percentage Change Calculator?
The Percentage Change Calculator uses standard, widely-accepted formulas, so its figures are reliable estimates for everyday planning. They are not a substitute for advice from a qualified professional.
Is the Percentage Change Calculator free, and do I need an account?
Yes. The Percentage Change Calculator — and every other calculator on Calculatis — is completely free, with no registration, no download and no limit on how often you use it.