[Glossary](https://useratio.app/glossary) › Maths and statistics # Percentile The value below which a given share of the data falls. The 90th percentile is the number that 90% of the values are at or below. Between two values, Ratio interpolates. ## In Ratio | You type | Ratio shows | | --- | --- | | `percentile([3, 7, 9, 12], 90)` | 11.1 | ## Related [Median and mean](https://useratio.app/glossary/median) · [All terms](https://useratio.app/glossary) [Try Ratio free for 7 days](https://useratio.app/download) Source: https://useratio.app/glossary/percentile