Percentage Calculator
Work out percentages, increases and discounts instantly.
Use ToolCompare an old value with a new one and see the increase or decrease as a percentage, updated live.
Enter valid values to see the result instantly.
Percentage change is the difference between two values divided by the original value, expressed out of one hundred. It is how price rises, salary increases, traffic growth and cost cuts are normally reported.
Direction matters: a fall from 100 to 50 is a 50% decrease, but going back from 50 to 100 is a 100% increase. The tool always measures change relative to the first value you enter.
There is nothing to submit or wait for — the result updates as soon as you change something.
No account, no sign-up and no daily cap — use it as often as you need.
The layout, buttons and inputs are built mobile-first and are fully keyboard accessible.
Work out percentages, increases and discounts instantly.
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