Use this free percentage calculator to quickly calculate percentages, percentage increases, and percentage decreases. This tool works instantly and is designed to be simple and mobile-friendly.
Percentage calculations are commonly used for discounts, financial calculations, statistics, grades, and everyday math.
---A percentage represents a proportion out of 100. For example, 20% means 20 out of every 100 units.
To calculate what percentage of a number is, multiply the number by the percentage and divide by 100.
Example:
20% of 150 = 150 × 0.20 = 30
Percentage increases and decreases compare the difference between two values relative to the original value.
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