How this Percentage Calculator works
Use this calculator when you know a part and a total and want to express the part as a percentage of the total.
A percentage is a ratio expressed per hundred. For example, 25 out of 200 is 12.5%.
Formula
(Part ÷ Whole) × 100
Learn more
How to Calculate a Percentage →Worked example
25 out of 200 is 12.5%.
How to interpret the result
The result expresses the part relative to the whole.
Common mistakes and limits
Check that the whole is the intended denominator and is not zero.
Frequently asked questions
How do I calculate a percentage?
Divide the part by the whole, then multiply the result by 100.
Can the result be over 100%?
Yes. If the part is larger than the whole, the percentage will be above 100%.
Important note
WorkTools provides general-purpose informational calculations. Verify inputs, definitions, policies and jurisdiction-specific requirements before using a result for financial, payroll, legal or other consequential decisions.