Percentage Calculator
Calculate percentages, percentage increase, decrease, and find what percentage one number is of another.
Calculate percentages, percentage increase, decrease, and find what percentage one number is of another. Enter your Number, Percentage to get an instant result. Formula: number * (percentage / 100).
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How It Works
How to Calculate Percentages
To find a percentage of a number, multiply the number by the percentage and divide by 100. For example, 20% of 50 is (50 × 20) ÷ 100 = 10.
Common Uses
Percentage calculations are useful in many situations:
- Calculating discounts and sales prices
- Finding tips at restaurants
- Determining tax amounts
- Computing interest on loans or savings
- Analyzing data and statistics
Frequently Asked Questions
What does percentage mean?
Percentage means "per hundred." It's a way of expressing a number as a fraction of 100. For example, 25% means 25 out of 100, or 25/100, or 0.25.
How do I convert a decimal to a percentage?
Multiply the decimal by 100 and add the % symbol. For example, 0.75 × 100 = 75%.
How do I find what percentage one number is of another?
Divide the first number by the second number, then multiply by 100. For example, to find what percentage 15 is of 60: (15 ÷ 60) × 100 = 25%.