# Percentage Calculator

This percentage calculator tool is a free online calculator to quickly and easily calculate percentages.

What is the percentage increase/decrease

Use the tab key to move to the next field and shift + tab to move to the previous field.

A percentage is a number that represents a fraction of the whole amount being 100. You will often see a percentage written with the symbol "%" or simply as "percent". It can also be denoted as "pct."

Percent is another name for indicating hundredths. So 1% is one-hundredth, that means in decimal form, 1% is 1 / 100 = 0.01. If you were to have 25%, it is equivalent to the decimal 0.25, or the fraction ΒΌ or 25/100.

## Percentage Formula

The percentage formula is simply just an algebraic equation involving three values.

The percentage calculator provided above automatically converts the input percentage into a decimal to compute the solution.

## Percentage Difference Formula

If you want to find the difference between two values, then you use the percentage difference formula to work this out.

The percentage difference between two values is calculated by dividing the absolute value of the difference between two numbers by the average of those two numbers.

Multiplying the result by 100 will yield the solution in percent, rather than decimal form.

## Percentage Change Formula

If you are trying to work out what is the percentage increase and decrease, then it is calculated by computing the difference between two values and comparing that difference to the initial value.

This involves using the value of the difference between the two values, and dividing the result by the initial value.

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