Arithmetic

Percentage Calculator

Work out percentages, percentage change, and reverse percentage problems.

Preparing Percentage Calculator

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Input

Percent of a number, what percent one number is of another, and increase or decrease. You will see the result first and the step-by-step solution below.

Input summary

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Step by Step Calculation

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Calculate first and the full working will appear below automatically.

How to use Percentage Calculator

Enter the values you know, tap Calculate to see the result first, then review the optional step-by-step solution below.

What this calculator is for

Percent of a number, what percent one number is of another, and increase or decrease.

Tips

Use clean numbers and symbols so the solver reads them correctly.
For lists, separate numbers with commas, spaces, or new lines.
For matrices, put each row on a new line.

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