What Are Percentages?
A percentage is a special ratio in which the second term of the ratio is always 100. By expressing a number as a percentage you are reflecting how many times it occurs in relation to 100 times. As an example: 3/4 is expressed as 75/100 or 75%. In other words, there would be 75 out of 100 occurrences, people, places, etc.
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What Are Percentages?. (2010, October 19). In ClassBrain Math . Retrieved 23:00, February 7, 2012, from http://www.classbrainmath.com/2010/03/percents/
MLA style
Cynthia Kirkeby, “What Are Percentages?.” ClassBrain Math . 19 October 2010, 00:08 UTC. . 7 Feb 2012 <http://www.classbrainmath.com/2010/03/percents/ >.
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Cynthia Kirkeby, 'What Are Percentages?', ClassBrain Math , 19 October 2010, 00:08 UTC, <http://www.classbrainmath.com/2010/03/percents/ > [accessed 7 February 2012]
The Chicago Manual of Style
Cynthia Kirkeby, “What Are Percentages?.” ClassBrain Math , http://www.classbrainmath.com/2010/03/percents/ [accessed February 7, 2012].
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Cynthia Kirkeby, What Are Percentages? [Internet]. ClassBrain Math; 2010 October 19, 00:08 UTC [cited 2012 Feb 7]. Available from: http://www.classbrainmath.com/2010/03/percents/ .
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What Are Percentages?, http://www.classbrainmath.com/2010/03/percents/ (last visited Feb. 7, 2012).
AMA style
Cynthia Kirkeby, What Are Percentages?. ClassBrain Math. October 19, 2010, 00:08 UTC. Available at: http://www.classbrainmath.com/2010/03/percents/ . Accessed February 7, 2012.