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  3. Percentage Calculator

Percentage Calculator

Calculate percentages, ratios, and percentage change

What is X% of Y?

What is% of?

X is what % of Y?

is what % of?

Percentage Change

Fromto

Related Tools

  • Margin Calculator - calculate profit margins
  • Discount Calculator - calculate discounts
  • Tip Calculator - calculate tips
  • Byte Converter - convert units

How to Use Percentage Calculator

  1. Choose calculation type

    Select what you want to calculate: percentage of a number, percentage change, or what percent.

  2. Enter your values

    Fill in the required numbers based on your selected calculation type.

  3. View the result

    See the calculated percentage or value with detailed breakdown.

Frequently Asked Questions

Is the Percentage Calculator free to use?
Yes, the Percentage Calculator is completely free with no limitations. Calculate percentages, percentage changes, and percentage of totals as often as you need without registration.
Is my data private?
Yes, all percentage calculations happen locally in your browser. No numbers or data are sent to any server. Your financial or business data stays completely private.
What percentage calculations can I perform?
The tool can calculate: what is X% of Y, X is what percent of Y, percentage increase/decrease between two numbers, and finding the original value before a percentage change. These cover most common percentage needs.
How do I calculate percentage change?
Percentage change is calculated as ((new value - old value) / old value) x 100. The tool handles this automatically, showing whether the change is an increase or decrease and by what percentage.
What are common uses for percentage calculations?
Percentages are used for calculating discounts, tips, tax, profit margins, grade scores, growth rates, survey results, and financial analysis. This tool makes all these calculations quick and error-free.