Statistics & Probability
Basic

Percentile Rank

Percentage of values below a given score.

Formula

PR=belown×100PR = \frac{\text{below}}{n}\times 100

Variables

belowCount below
nTotal

Example

80th percentile beats 80%

Did You Know?

Percentile rank is why a "90th-percentile" test score means you beat 90% of takers, not that you scored 90%.