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Percentage Calculator

Three common percentage calculations. Type, get the answer instantly.

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What is % of ?

30.00
Result

is what % of ?

15.00%
Percentage

% change from to

+25.0%
Change

Percentage formulas

  • X% of Y = Y x (X / 100)
  • A is what % of B = (A / B) x 100
  • % change = ((New - Old) / Old) x 100

Frequently asked questions

What is 20% of 150?
30. Multiply 150 by 0.20.
How do I calculate percentage increase?
Subtract old from new, divide by old, multiply by 100. Example: 80 to 100 = (100-80)/80 x 100 = 25%.
Margin vs markup?
Margin = profit / selling price. Markup = profit / cost. A 50% markup is a 33.3% margin.