Percentage Increase Calculator: The Complete Guide
Find out how much something has grown in percentage terms. Enter the original value and the new value to see the percentage increase and the size of the change.
Who the Percentage Increase Calculator is for
Anyone measuring growth — prices, salaries, traffic, or any value that rose over time.
How to use the Percentage Increase Calculator
- Type your values into the fields above — pick your currency or units where the calculator offers them.
- Results update automatically as you type; there's no submit button and nothing is sent to a server.
- Adjust any input to compare scenarios, then copy the result with a single click.
How it works
Percentage increase = (new value − original value) ÷ original value × 100. A negative result means the value actually fell.
Features
- Percentage increase
- Change in value
- Handles decreases too
- Instant result
Measuring growth
A percentage increase expresses how much a value has grown relative to where it started, which makes changes of different sizes comparable. A rise from 80 to 100 is a 25% increase. If the new value is lower, the calculator reports a negative percentage, telling you it's really a decrease.