You are evaluating two different silicon wafer milling machines. The Techron I costs $$320,000,$

has a four$-$year life, and has operating costs of $$85,000$ per year. The Techron II costs

$$456,000,$ has a six$-$year life, and has operating costs of $$46,000$ per year. Assume a discount

rate of $10$ percent.

What is the NPV of Techron I$\text{'}$s cash flows?

$$512,424\mathrm{.}63$

$$623,456\mathrm{.}79$

$$546,793\mathrm{.}42$

$$578,963\mathrm{.}12$

$$589,438\mathrm{.}56$