![]() ![]() For example, it is common to refer to 111% or −35%, especially for percent changes and comparisons. While many percentage values are between 0 and 100, there is no mathematical restriction and percentages may take on other values. Expressed as a percentage, this is a 6% increase. If there are 500 students, then 250 of them are male.Īn increase of $0.15 on a price of $2.50 is an increase by a fraction of 0.15 / 2.50 = 0.06. If 50% of the total number of students in the class are male, that means that 50 out of every 100 students are male. (Similarly, one can also express a number as a fraction of 1,000, using the term " per mille" or the symbol " ‰".) Percentages are often used to express a proportionate part of a total. Examplesįor example, 45% (read as "forty-five per cent") is equal to the fraction 45 / 100, the ratio 45:55 (or 45:100 when comparing to the total rather than the other portion), or 0.45. ![]() A percentage is a dimensionless number (pure number), primarily used for expressing proportions, but percent is nonetheless a unit of measurement in its orthography and usage. It is often denoted using the percent sign (%), although the abbreviations pct., pct, and sometimes pc are also used. In mathematics, a percentage (from Latin per centum 'by a hundred') is a number or ratio expressed as a fraction of 100. For the unit of currency, see cent (currency).Ī pie chart showing the percentage by web browser visiting Wikimedia sites (April 2009 to 2012)
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