#### Percent

#### Percent & Conversions

The word percent means per 100. It is a fraction whose denominator is 100. For example, 26% is equivalent to the fraction 26/100.

A percentage is used to compare values. It can describe the relationship of a part to a whole, or it can describe a magnitude of change.

**Decimal to Percent**

To change a decimal number to a percentage, multiply by 100; this moves the decimal point 2 places to the right. Then add the percent symbol.

0.32 = 32%

0.07 = 7%

1.75 = 175%

**Percent to Decimal**

To change a percentage to a decimal, divide by 100; this moves the decimal point 2 places to the left. Then remove the percent symbol.

25% = 0.25

90% = 0.90 = 0.9

32.1% = 0.321

100% = 1

**Fraction to Decimal**

You can convert a fraction to a decimal by dividing the numerator by the denominator. Sometimes a quicker method is to change the fraction so it has 100 as the denominator.

21/100 = 0.21

43/50 = 86/100 = 0.86

13/16 = 13 / 16 = 0.8125