We are evaluating a project that costs $$1,080,000,$ has a life of $10$ years, and has no salvage value. Assume that depreciation is straight$-$line to zero over the life of the project. Sales are projected at $52,000$ units per year. Price per unit is $$50,$ variable cost per unit is $$30,$ and fixed costs are $$730,000$ per year. The tax rate is $25$ percent, and we require a return of $15$ percent on this project. a$.$ Calculate the accounting break$-$even point. $($Do not round intermediate calculations and round your answer to the nearest whole number, e$.$g$.,32.)$ b$-1.$ Calculate the base$-$case cash flow and NPV$.($Do not round intermediate calculations and round your NPV answer to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$ b$-2.$ What is the sensitivity of NPV to changes in the sales figure? $($Do not round intermediate calculations and round your answer to $3$ decimal places, e$.$g$.,32\mathrm{.}161.)$ c$.$ What is the sensitivity of OCF to changes in the variable cost figure? $($A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to the nearest whole number, e$.$g$.,32.)$