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At store T, the dollar amount of sales for 2007 was what % t

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At store T, the dollar amount of sales for 2007 was what % t [#permalink] New post 07 Jan 2017, 07:13
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At store T, the dollar amount of sales for 2007 was what % the dollar amount of sales for 2008 ?

Give your answer to the nearest 0.1%

[Reveal] Spoiler: OA
15%

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Joined: 07 Jun 2014
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GRE 1: 323 Q167 V156
WE: Business Development (Energy and Utilities)
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Re: At store T, the dollar amount of sales for 2007 was what % t [#permalink] New post 07 Jan 2017, 17:49
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Explanation

If A is the dollar amount of sales at Store T for 2007, then 8 percent of A, or 0.08A is the amount of decrease from 2007 to 2008.

Thus A - 0.08A = 0.92A is the dollar amount for 2008.

Therefore, the desired percent can be obtained by dividing A by 0.92A which equals The \frac{A}{0.92A}, which equals \frac{1}{0.92}, which equals 1.0869565...

Expressed as a percent and rounded to the nearest 0.1 percent, this number is 108.7%.

Thus, the correct answer is 108.7% (or equivalent).
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