# Percentage

## Number or ratio expressed as a fraction of 100 / From Wikipedia, the free encyclopedia

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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, "%",[1] although the abbreviations "pct.", "pct" and sometimes "pc" are also used.[2] A percentage is a dimensionless number (pure number); it has no unit of measurement.