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Percentage Calculator (All Modes)

Every percentage question in one place: percent of a number, percent change, what percent X is of Y, and reverse percentage (original before increase).

Tip from Tink: Use the last row to remove sales tax or VAT from a price.

What is
% of
?30
% change from
to
25%
is what % of
?25%
is after a
% increase. Original?100
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How to use the Percentage Calculator (All Modes)

  1. Pick the row that matches your question.
  2. Type your numbers into the boxes.
  3. The answer appears on the right.

Everything runs in your browser. Nothing you enter is uploaded.