Percentage Calculator
A versatile percentage calculator — find X% of Y, what percent X is of Y, or calculate percentage change.
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How to use Percentage Calculator
- 1
Pick the calculation mode.
- 2
Enter your numbers.
- 3
Read the instant result.
Why use Percentage Calculator?
- Three modes in one tool.
- Shows the formula used.
- Works with decimals and negatives.
Common use cases
- Calculate a tip or discount.
- Figure out percentage growth between two numbers.
- Compute a tax amount.
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About Percentage Calculator
Percentage math shows up everywhere — discounts, tips, taxes, growth rates, and grades. Xevon Tools' Percentage Calculator combines the three most common percentage questions into one tool: 'What is X% of Y?', 'X is what percent of Y?', and 'What is the percentage change from X to Y?'. Each mode shows the formula so you can learn and verify as you go.