Percentage Calculator
Work out percentages, reverse percentages, and percentage change quickly.
Percentage of a number
What is % of ?
Reverse percentage
is what percent of ? %
Percentage change
What is the percentage increase/decrease from to ? %
About this calculator
This tool covers three common percentage tasks: finding a percent of a number, reversing a percent, and calculating percent change.
It is useful for pricing, budgeting, sales analysis, or checking basic percentage maths without a spreadsheet.
All calculations run locally in your browser.
FAQ
What does percentage change mean?
It shows how much a value increased or decreased relative to the starting number.
Why do I sometimes see a negative result?
A negative result indicates a decrease from the original value.