Do I use the net present value function (PV) to get an answer of (negative)
-37,565 if we have a cash outflow of $50,000 at the end of the 3rd year at a
10% factor?

I am using a text book and chart, but Id like to be able to use excel to
calculate it. Once again, the texts answer is (37,565).

Thank you for your help.
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das