Starboard is analyzing two machines to determine which one it should purchase. The company requires a rate of return of $14\mathrm{.}6$ percent and uses straight$-$line depreciation to a zero book value over a machine's life. Ignore bonus depreciation and taxes. Machine A has a cost of $$318,000,$ annual operating costs of $$10,000,$ and a life of $4$ years. Machine B costs $$247,000,$ has annual operating costs of $$9,300,$ and a life of $2$ years. Whichever machine is purchased will be replaced at the end of its useful life. Which machine should Starboard purchase, and why?