Percentage Calculator - Change & Difference | FinanceMetricX
Calculate percentages instantly. Find X% of Y, percentage change between two values, or percentage difference. Free and simple.
The percentage to calculate
The base value
How It Works
Percentage Calculations Explained
Percentages express a number as a fraction of 100. They're used daily for discounts, tax rates, tips, growth rates, and comparisons. This calculator handles three common operations.
X% of Y
Finds a part of a whole. Formula: (X / 100) × Y. For example, 15% of 200 is 30.
Percentage Change
Measures how much a value has increased or decreased relative to the original. Formula: ((New − Old) / |Old|) × 100. A positive result means an increase; negative means a decrease.
Percentage Difference
Measures the relative difference between two values without implying direction. Formula: (|A − B| / ((|A| + |B|) / 2)) × 100. Useful for comparing two measurements where neither is clearly the "original."