📚 Education

Percentage Calculator (Education)

Calculate percentages, find what percentage one number is of another, and work out percentage increase or decrease. Step-by-step working shown.

The Percentage Helper is a free online tool that helps you calculate percentages, find what percentage one number is of another, and work out percentage increase or decrease. step-by-step working shown It runs in your browser with no sign-up, downloads, or installation needed. All processing happens locally — your data stays on your device.
Percentage Helper

How to use

1

Three ways to calculate

Tab 1: Find a percentage of a number (25% of 200 = 50). Tab 2: Find what percentage one number is of another (50 is 25% of 200). Tab 3: Find the percentage change between two numbers (80 to 100 = +25%).

Frequently asked questions

Is the Percentage Helper free to use?

Yes, the Percentage Helper is completely free. There is no sign-up, no account required, and no limit on how often you can use it.

Is the Percentage Helper suitable for classroom use?

Yes, the Percentage Helper is designed for both individual learners and classroom use. It works on any device with a modern browser — phones, tablets, Chromebooks, and computers.

What devices does the Percentage Helper work on?

The Percentage Helper works on any device with a modern web browser — desktop, laptop, tablet, or phone. It is mobile-friendly and works offline once the page has loaded.