ABSTRACT
Percentages are mainly used in the tabulation of data in order to give the reader a scale on which to assess or compare the data.
“Per cent” means per hundred, so a percentage describes a proportion of 100. For example 50% is 50 out of 100, or as a fraction 1⁄2. Other common percentages are 25% (25 out of 100 or 1⁄4), 75% (75 out of 100 or 3⁄4).
