Cherry International Company is a leading business firm dealing in var

Solution:

The graph has three lines depicting number of employees and sales & cost. Further Profit = Sales - Cost

First Blank: We have to give the year tha had maximum profit per employee.
=> \(\frac{Profit}{employee}=\frac{Sales-Cost}{employee}\) ­
We don't require to calculate the value for each but scanning the graph should help us. 

As normal in the official questions, a seemingly easy question too has some trap/trick.

So, we look for the larger value of Sales- cost, which is nothing but the gap between orange line and blue line,  and smaller value for employees.
Scanning the graph, the lgaps are the biggest in year 2008, 2009 and 2011.
Now, 2008 is a trap because it is opposite of what we are seeking. The gap gives Cost - Sales, which is loss.
Let us see 2009 and 2011 now. The gap is almost same but the number of employees are much lesser in 2011.
So, the value of  \(\frac{Profit}{employee}=\frac{Sales-Cost}{employee}\) will be largest for year 2011.

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Second Blank: We have to give the year that had maximum percntage change in cost.
What one has to be careful on is the difference in maximum change vs maximum % change.
Although maximum change in cost is the drop of almost 112-8 or $104 billion, but drop will never be more than 100% here.
On the other hand, the increase in 2010 is 30 - 8 or $22 billion, a % increase of almost 300%. => 100*22/8
=> \(100*\frac{22}{8}=275\) ­%. 
Answer: 2010

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