Use the In$-$class exercise from Lecture $7($be sure to use the excel file from Unit $7)$ for this problem. Assume that the cost per unit can be decreased to $$12$ by using cheaper raw materials to produce the shelves. As news of the lower quality shelves spreads, we also expect that units sold will decrease by $7\%$ per year. All other assumptions remain the same. What is the new NPV$?$

Instruction: Type ONLY your numerical answer in the unit of dollars, NO $ sign, NO comma, and rounded to the second decimal place. E$.$g$.,$ if your answer is $$7,001\mathrm{.}56,$ should type ONLY the number $7001\mathrm{.}56,$ NEITHER $7,002,$ $$7002,$ $$7,002,$ NOR $7001.$ Otherwise, Blackboard will treat it as a wrong answer.