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Percentage Calculator

Percentage Calculator

Quickly calculate percent of a number, percent change, and reverse percentages.
Percent of
Percent change
Reverse percent
Result: —
Shortcuts: Enter calculate current tab · 1/2/3 switch tabs · R reset.
Explanation

Common percentage operations in one place.

  • Find X% of Y: result = (X ÷ 100) × Y.
  • Find what % A is of B: percent = (A ÷ B) × 100.
  • Increase/decrease by %: new = base × (1 ± p).