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Percentage Calculator

Solve common percentage questions with clear modes for percent of a number, percent share, and percentage change.

Percentage Calculator

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Your numbers are used only to calculate the percentage result in your browser.

Result

Enter values to see the result.
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How it works

Choose the calculation type, enter two numbers, and get a clean percentage result.

This calculator covers the percentage questions people use most: X% of Y, X as a percent of Y, and the increase or decrease from one value to another. It is useful for shopping, reports, grades, and quick comparisons.

Practical guide

Quick guide for better results

Use it for percentage of a number, percentage change, or comparing two values quickly.

Use case

When this page is useful

Percentage Calculator is built for one clear task, so you can get a result without leaving the page or creating an account.

  • Calculate discounts, tax, commission, or shares.
  • Compare growth in sales, grades, or budgets.
  • Turn a percentage question into a copyable result.
Accuracy

How to get a clearer result

Choose the question type first: percentage of a value, percent change, or what percent one number is of another.

  • Use numbers from the same unit.
  • Do not mix the percentage with the final value.
  • Review decimal places for money or reports.
Watch out

Common mistakes before relying on the result

A question like "20 is what percent of 80" is different from "what is 20% of 80".

  • Check the direction when calculating increase or decrease.
  • Do not divide by zero.
  • Use a rounding level that fits the task.
Privacy

What happens to your input

Numbers are processed in your browser and are not stored by ABC7.

  • Tool values are not sent to analytics.
  • No user account is required.
  • Copy the result only after checking it.

Examples

Percent of a number

20% of 80 equals 16.

Percentage increase

The value increased by 20 percent.

FAQ

Which percentage modes are included?

It supports X% of Y, X is what percent of Y, and percentage change from one number to another.

Can I use decimals?

Yes. Decimal values are supported for both inputs.

Why is zero blocked in some modes?

A comparison value of zero cannot be used as a divisor, so the calculator asks for another number.