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Percentage Calculation

Tool to convert percentages. Percentage calculation consists in writing a number via a fraction of 100, using the sign %.

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Percentage Calculation -

Tag(s) : Mathematics

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# Percentage Calculation

## Computing with Percentage and Number

Tool to convert percentages. Percentage calculation consists in writing a number via a fraction of 100, using the sign %.

### How to convert a fraction into a percentage?

A percentage is a transformed fraction with the denominator 100. Multiply the numerator and the denominator by a factor in order to have the denominator equals to 100.

Example: 3/4 = (3*25)/(4*25) = 75/100 = 75%

### How to convert a percentage to a fraction?

A percentage is already a fraction (over 100), write it in lowest term.

Example: 25% = 25/100 = 1/4

### How to calculate an equation with percentages?

The dCode function allows to solve equations such as :

Example: If 25% of X = 100, Then X = ? (The answer is 400)