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Percentage Calculator
What is
% of
is what % of
is
% of what?
What this does
Three everyday percentage questions in one place: what is X% of Y; X is what percent of Y; and the percentage change from X to Y.
When to use it
- Tips, tax, discounts and commissions.
- Grades and test scores.
- Growth from last month to this month.
Good to know
Percentage change is relative to the starting value, so a rise from 50 to 100 is +100%, but a fall from 100 to 50 is −50%.
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