Can percentages be greater than 100?
Yes. The calculator accepts percentages above 100 and decimal percentages.
Percentage Calculator
Calculate percentages, percentage change, adjusted values, and percentage difference from one practical page.
Choose the calculation that matches your question. Decimal, negative, and above-100% values are supported where mathematically meaningful.
Calculations run locally in your browser and are not financial advice.
What this tool does
This percentage calculator handles five common questions: a percentage of a number, one number as a percentage of another, percentage change, percentage adjustment, and percentage difference.
How to use it
- Choose the percentage question that matches your task.
- Enter the values, including decimals or negatives where meaningful.
- Calculate to see the result, formula, and substituted working.
Example input and output
Input: 20% of 150
Output: 30
Common use cases
- Checking discounts and changes
- Comparing two measurements
- Reviewing business figures before deeper financial analysis
FAQ
Why are some zero values rejected?
Calculations that divide by a zero denominator are mathematically undefined, so the tool explains the issue instead of returning a misleading result.
Is this financial advice?
No. This is a general-purpose mathematics tool and does not provide tax, mortgage, VAT, interest, or financial advice.