Percentage Calculator
Free online tool to calculate percentages in different ways.
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Tips: Use tab to move to the next field. Use shift-tab to move to the previous field. Press enter to calculate.
Percentage Calculator Guide
This percentage calculator helps you solve the most common percent problems used in school, finance, discounts, markups, and data analysis. It supports percentage of a number, percentage comparison, and percentage change.
Percent Of
Find a percentage of a value, such as 20% of 150.
result = (percent / 100) * value
What Percent
Find what percent one number is of another.
percent = (part / whole) * 100
Percent Change
Measure increase or decrease from an original number to a new number.
change = ((new - original) / original) * 100