Percent Calculator
What is X% of an amount, what share one number is of another, and how much a value rose or fell — percent math in one place.
How to use
- Pick a mode: percent of an amount, share of a total, or change rate.
- Enter the two numbers.
- The result and the formula appear instantly.
- Copy link shares the address with your inputs included.
FAQ
What is 15% of 10,000?
Use “Percent of” with 10000 and 15 to get 1,500.
What percent is 30 of 200?
Use “Share of” with 30 and 200 to get 15%.
100 rising to 130 — how many percent?
Use “Change rate” with 100 and 130 to get +30%.
Why is the change rate negative?
A smaller second number is a decrease, shown with −. −20% means down 20%.
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