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Find the percent change in the revenue generated by a salesman.

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Find the percent change in the revenue generated by a salesman. [#permalink]

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New post 10 Jun 2018, 05:04
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Find the percent change in the revenue generated by a salesman.

(1) When the salesman reduces the selling price of the product by 9.09%, the sales increase by 11.11%

(2) The number of units of the product sold before the change in price was 990

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Re: Find the percent change in the revenue generated by a salesman. [#permalink]

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New post 10 Jun 2018, 05:35
We can make assumptions for this one.

With (1), assuming we sold 100 units for $100 each, then the revenue is $10,000. With the price and sales change, we now sell 111.11 units (don't worry about the facts that we are selling 0.11 of a unit lol) for $90.91. I can't do the math off the top of my head, but surely one can figure out what 111.11*90.91 is, and then we compare the answer against $10,000 for the percentage change in revenue. Now, clearly if we assume 200 units instead, then the calculations are just doubled. Any change we make to the assumption will pervade through the calculations, so the percentage change remains the same.

(2) is not sufficient. It actually doesn't matter at all in this case.

So A.
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Re: Find the percent change in the revenue generated by a salesman. [#permalink]

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New post 12 Jun 2018, 18:07
Total Revenue = Selling Price * No. of units sold

A. selling price decreased by 9.09% - 10/11%, total sales increases by 11.11% - 10/9%
percentage change in revenue = 10/11 * 10/9 = 100/99%
A is sufficient
B. Clearly not sufficient
Re: Find the percent change in the revenue generated by a salesman.   [#permalink] 12 Jun 2018, 18:07
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Find the percent change in the revenue generated by a salesman.

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