- Denoted by the percent sign %
- Percentage or percent means per 100, or out of 100
- Example: 20% of the apples are green, means 20 out of 100 apples are green
- In order to use a percent in a calculation it must be converted to a fraction or decimal
- A given percent is converted into a fraction by dividing it by 100
- The resulting quotient represents the decimal equivalent of the given percent
- Example: 20% = \frac { 20 }{ 100 } = 0.2
- Note: A percent could be greater than 100%, which might reflect a substantial increase in quantity or value of something from one point in time to another
Percentage (Wikipedia)
In mathematics, a percentage (from Latin per centum "by a hundred") is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", or the abbreviations "pct.", "pct"; sometimes the abbreviation "pc" is also used. A percentage is a dimensionless number (pure number).