The word “percent “ (per cent) was taken from the Latin language which means “by the hundred” or can be explained, as the portion of a quantity proportional to its whole relative to “one hundred”. This is a percent sign ” % “, the contraction of two circles (0) separated by a horizontal line, and the modern “%” symbol derived. In mathematics, a percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, “%”, or the abbreviated some time as “pct.” Or “pc” used in the case of quantities in economics. In mathematical statement “a percentage is a dimensionless number (pure number)”. For example, 81% (read as eighty one percent) and expressed as, equal to 81 portions of its whole quantity relative to 100. Following will help understanding further:
Example 1: 25 is what percent of 100. The formula is: (25/100) x 100 = 25%
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Example 2: What is 55% of 200. The formula is: 55/100×200=110
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Example 3: 243 is the 57% of what number. The formula is: (243/100) / 57 = 426.3
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Example 4: What is the percentage increase between 245 and 512 . The formula is: 512-245/245×100=108.97 %
Example 5: What is the percentage decrease between 345 and 298 . The formula is: 298-345/345×100=13.6 %
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Posted in: percentage | Tags: how to do percentages, percentage calculator, percentage decrease, percentage difference calculator, percentage increase
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