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Percentage Calculator

Calculate percentages, percentage changes, increases, decreases, and discounts with detailed explanations

Basic Percentage Calculation
Find what percentage one number is of another
How to Use

Basic Percentage

Find what percentage one number is of another. For example, "25 is what percent of 100?"

Formula: (Value ÷ Total) × 100

Percentage Change

Calculate the percentage increase or decrease between two values.

Formula: ((New - Old) ÷ Old) × 100

Increase/Decrease

Calculate the result of increasing or decreasing a value by a percentage.

Formula: Original × (1 ± Percentage/100)

Discount Calculator

Calculate discount amounts and final sale prices.

Formula: Original × (Discount/100)