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Percentage

Submitted by BinksUK on

Percentage = (out-of value/ total value)*100 e.g. a score of 25 out of 50 in a tma gives a percentage of (25/50)*100 = 50%

Find the decimal of a percentage = percentage / 100

Percentage increase = total * (1 + percentage decimal) i.e increase £20 by 10% = 20 * 1.10 = £22

Percentage decrease = total * (1 - percentage decimal) i.e. decrease £20 by 10% = 20 * .90 = £18

Find a percentage of a total = total * percentage decimal i.e. 10% of £20 = £20 * .10 = £2

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