IE Exercise $24-8($Algo$)$: Net present value and unequal cash flows LO P$3$

A company is considering a $$136,000$ investment in machinery with the following net cash flows. The company requires a $10\%$

return on its investments.

$($a$)$ Compute the net present value of this investment.

$($b$)$ Should the machinery be purchased?

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Hello I$\text{'}$m using microsoft excel to do this assignment. Can you please help me with inputting the PV function for Cells C$11-$C$15.$ As well as the NPV function for cell C$20.$ Can you show how to do it$?$