Free Online Percentage Calculator
Calculate percentage of a number, percentage increase/decrease, and relative percentage differences instantly.
1. What is X% of Y?
What is
% of
?
Result: 30
2. X is what percent of Y?
is what percent of
?
Result: 25%
3. Percentage Increase or Decrease
From
to
Change: +50%
Client-Side Processing: All financial and personal inputs remain private in your browser.
Formula & Calculation Method
P% of X = (P / 100) * X | % Change = ((New - Old) / Old) * 100
Perform common percentage math without hassle. Solve 'What is X% of Y?', calculate percentage increases or discounts, and determine relative proportions.
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