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16 August, 01:49

Find each percent increase round to the nearest percent from 86 books to 150 books

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  1. 16 August, 01:56
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    From 86 books to 150 books. An increase of 64 books.

    (150 - 86) / 86 = 64 / 86 = 0.744 * 100% = 74.40% or 74% increase

    150 / 86 = 1.744 * 100% = 174.40%

    86 is the basis. It is 100%

    If the problem asks for the value of the percentage increase and the rate is given 74.4% of 86. Then 86 * 74.4% = 64. You just add 64 to 86 to get the new total of books which is 150.
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