Percentage Calculator
Calculate percentages, increases, decreases, and more
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Results
Disclaimer
This percentage calculator provides accurate calculations for educational and general purposes. Results are rounded to two decimal places.
What is a Percentage Calculator?
A percentage calculator helps you solve various percentage-related problems including finding what percentage one number is of another, calculating percentage increases or decreases, and determining the original value before a percentage change.
Essential for business calculations, academic work, financial analysis, and everyday math problems involving percentages.
Common Percentage Calculations
What is X% of Y?
Calculate a percentage of a number. Example: What is 25% of 200? Answer: 50
X is what % of Y?
Find what percentage one number represents of another. Example: 50 is what % of 200? Answer: 25%
Percentage Change
Calculate percentage increase or decrease between two values. Useful for analyzing growth rates and changes over time.
Real-World Applications
Sales and Discounts
Calculate sale prices, discount amounts, and savings on purchases.
Financial Analysis
Analyze investment returns, loan interest rates, and financial growth metrics.
Academic Grading
Convert test scores to percentages and calculate grade point averages.
Frequently Asked Questions
How do I calculate percentage increase?
Use the formula: ((New Value - Old Value) / Old Value) × 100. For example, if a price increases from $100 to $120, the increase is 20%.
What's the difference between percentage and percentile?
Percentage is a fraction of 100, while percentile indicates the value below which a percentage of data falls in a distribution.
Can percentages exceed 100%?
Yes, percentages can exceed 100% when representing increases, ratios, or comparisons where the result is greater than the original value.