📊 Percentage Calculator
Calculate percentages, percentage increase/decrease, and find what percentage one number is of another
Calculate Percentage
What is X% of Y?
Percentage Change
X is what % of Y?
Results
How to Calculate Percentages
Basic Percentage Formula
Percentage = (Part / Whole) × 100
Example: 25 is what % of 100? = (25/100) × 100 = 25%
Percentage of a Number
Result = (Percentage / 100) × Number
Example: 15% of 200 = (15/100) × 200 = 30
Percentage Change
Change = ((New - Original) / Original) × 100
Example: From 100 to 120 = ((120-100)/100) × 100 = 20%
Common Use Cases
- • Discounts: Calculate sale prices and savings
- • Tips: Calculate restaurant tips and service charges
- • Grades: Convert test scores to percentages
- • Taxes: Calculate tax amounts and rates
- • Growth: Measure business or investment growth
- • Statistics: Analyze data and survey results
About This Percentage Calculator
Our free percentage calculator makes it easy to calculate percentages, percentage increases and decreases, and find what percentage one number is of another. Whether you're calculating discounts, tips, grades, or analyzing data, this tool provides accurate results instantly.
The calculator supports three main types of percentage calculations: finding a percentage of a number, calculating percentage change between two values, and determining what percentage one number represents of another. All calculations are performed instantly as you type, with clear explanations of the formulas used.
This percentage calculator is completely free to use, requires no registration, and works on all devices. Your calculations are performed locally in your browser for maximum privacy and speed.
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