Calculator Utility
Percentage Calculator
Easily calculate percentages. Find what X% of Y is, calculate percentage increase/decrease, or find what percent X is of Y. Fast and simple.
What is X% of Y?
What is% of=
30
X is what percent of Y?
is what % of=
25%
Percentage Increase / Decrease
FromTo=
+20%
How to Calculate Percentages
Percentages are used constantly in daily life — from figuring out tips at restaurants, calculating taxes, interpreting statistics, or analyzing business growth. This tool simplifies the three most common percentage formulas so you don't have to remember them.
- What is X% of Y? Formula: (X / 100) × Y. Useful for finding the tax amount on a purchase.
- X is what percent of Y? Formula: (X / Y) × 100. Useful for finding out your score on a test (e.g., 40 right out of 50).
- Percentage Increase/Decrease: Formula: ((New - Old) / Old) × 100. Essential for finding business growth, stock market changes, or markdown amounts.