Sensitivity Analysis
Parameter	Initial Assumption	Worst Case	Best Case
Sales in Year 1	$30,000	$27,000	$33,000
NPV	5,346,668	1,998,971	8,694,366
Sales Growth through Year 6	6%	0%	10%
NPV	5,346,668	(384,846)	9,846,946
Cost of Goods Sold (% of Sales)	72%	77%	67%
NPV	5,346,668	(1,810,082)	12,503,418
Cost of Capital	20%	23%	17%
NPV	5,346,668	3,417,286	7,567,579
Question: Suppose you are the financial manager, if you are asked to use limited resources to refine the assumption on ONLY ONE of the above four parameters, which one should you choose and why? (fill in the blanks highlighted in yellow)