Percentage Calculator
Solve 3 common everyday percentage calculations with instant reactive formulas.
1. What is X% of Y?
2. X is what % of Y?
3. Percentage Increase / Decrease
How to Use the Percentage Calculator
Follow these simple steps to use this tool directly in your browser.
Select Calculation Mode
Choose percentage of a number, ratio, or percent change.
Enter Numbers
Type in your values.
Get Instant Result
Click Calculate to reveal the answer.
Key Features
3 Calculation Modes
Solves standard percentage, portion share, and percent increase/decrease.
Step-by-Step Clarity
Simple inputs designed for shopping, business, and school math.
Percentages are fundamental to understanding financial growth, retail sales discounts, business margins, and statistical reports.
Frequently Asked Questions
Percentage change formula: ((New Value - Old Value) / |Old Value|) * 100.
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