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Percentage Calculator - Calculate Percentage Increase, Decrease & Ratio

Easily calculate percentage increases, decreases, difference between numbers, and fractional ratios with instant results.

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How to use

  1. 01Choose the calculation mode (percentage of a number, ratio comparison, or percentage change).
  2. 02Enter the numerical inputs into the designated fields.
  3. 03Get instantaneous results along with the step-by-step arithmetic formula breakdown.

FAQ

How is percentage increase or decrease calculated?

Percentage change is calculated using: [(New Value - Old Value) / |Old Value|] * 100. Positive values indicate growth, while negative values show drops.

What is the distinction between percentage and percentage points?

Percentage measures relative proportional change, while percentage points represent the absolute arithmetic difference between two percentage figures.

Can this tool calculate "What is X percent of Y"?

Yes. Dedicated calculation modes allow finding what percent X is of Y, finding X percent of Y, and calculating original values from percentages.