๏ผ Percentage Calculator
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Three common percentage operations in one place: what is X% of Y, X is what percent of Y, and percent change from X to Y. Switch modes from the dropdown โ the input labels update so you don't have to remember the formula.
How to use
- Pick the mode that matches your question:
- What is A% of B? โ e.g., "20% of 150" โ 30
- A is what percent of B? โ e.g., "30 is what % of 150" โ 20%
- Percent change from A to B โ e.g., "100 โ 125" โ +25%
- Enter the two numbers and click Calculate.
Percent change uses the formula (B โ A) / A ร 100. A drop from 100 to 75 is โ25%; rising back from 75 to 100 is +33% โ gains and losses are not symmetric.