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Percentage Calculator - Fast & Accurate Percent Calculator

Calculate percentages, increases, decreases, and differences in seconds. Simple, accurate, and free online percentage calculator.

💡 Tip: All calculation results are displayed in real-time with precise decimal calculations. You can also use the AI feature to get detailed calculation explanations and application suggestions.
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How to use

Our percentage calculator provides four professional calculation modes to help you quickly and accurately complete various percentage-related mathematical operations. Whether for business discounts, data analysis, or daily calculations, it can handle them easily.

Percentage of: Calculate X% of a value
Find percentage: Find what percentage one number is of another
Increase: Calculate value after percentage increase
Decrease: Calculate value after percentage decrease

Frequently Asked Questions

How do I calculate percentage increase?

To calculate percentage increase, use this formula: ((New Value - Original Value) / Original Value) × 100. For example, if a value increases from 50 to 75, the percentage increase is ((75-50)/50) × 100 = 50%.

What's the difference between percentage and percentile?

Percentage represents a portion out of 100 (e.g., 25% means 25 out of 100), while percentile indicates the position in a distribution (e.g., 75th percentile means 75% of values are below this point). This calculator focuses on percentage calculations.

Can I calculate reverse percentages with this calculator?

Yes! Our percentage calculator supports multiple operations including finding what percentage one number is of another, calculating percentage increases/decreases, and determining the original value before a percentage change was applied.

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