Percentage Calculator
Calculate percentages, increases, and decreases instantly
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Basic Percentage
What is X% of Y?
%
of
Result
0
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Percent Of
X is what percent of Y?
is
of
Result
0%
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Change
Percentage change from X to Y?
From
To
Result
0%
Percentage Formula & Examples
Basic Percentage
To find X% of Y:
Result = (X / 100) ร Y
Example: 15% of 200
= (15 / 100) ร 200 = 30
Percent Of
To find what percent X is of Y:
Percent = (X / Y) ร 100
Example: 30 is what % of 150?
= (30 / 150) ร 100 = 20%
Percentage Change
To find the % change from X to Y:
Change = ((Y - X) / X) ร 100
Example: Change from 100 to 150?
= ((150 - 100) / 100) ร 100 = 50%
Common Percentage Calculations
Tips & Gratuity
Calculate 15-20% tip on any bill amount quickly.
Discounts
Find the final price after applying a percentage discount.
Growth Rate
Calculate year-over-year or month-over-month growth.
Grade Scores
Convert points or scores into percentage grades.