Percentage Calculator

Calculate percentage increases, percentage decreases, proportions, and percentage differences between two numbers for school, business, and financial calculations.

Summary:A percentage calculator solves fundamental percentage problems, including finding what percentage one number is of another, calculating percentage shifts, and determining values after percentage markups or discounts.

What is X% of Y?

What is% ofis0.00

X is what % of Y?

is what % ofis0.00%

Percentage Increase / Decrease

Fromtois a change of+0.00%

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How to Use Percentage Calculator

Follow these steps to use the Percentage Calculator: 1. Choose the appropriate sub-tool for finding percent, percentage change, or ratios. 2. Input the values representing the part and the whole into their fields. 3. If evaluating growth, enter the original and final values for percent change. 4. Read the calculated percentage value, increase/decrease percentage, or ratio output. Enter your values to calculate the result instantly. This tool performs calculations locally in your browser.

Percentage Calculator Formula / How It Works

The calculator performs basic division of parts by wholes multiplied by 100, or solves algebraic percent equations for the target variables.

Formula:Percent = (Part / Whole) * 100. Percent Change = ((New - Old) / Old) * 100.
Example Calculation:

For example, let's look at finding what percentage 25 is of 200, or evaluating a percent change from 50 to 75. By entering these values into the tool, you will get 25 is 12.5% of 200, and the change from 50 to 75 represents a 50% increase instantly.

Frequently Asked Questions

Divide X by Y and multiply by 100.

Multiply the original number by 1.15.

The percentage reduction of a number relative to its original value.

Markup is the ratio of profit to cost. Margin is the ratio of profit to selling price.

One hundredth of a percentage point (0.01% = 1 basis point).

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