Answer:
NPV of the microwave: 162.04
Explanation:
we will calcualte the present value of the microwave cost savings of 76 dollars per year using the annuity formula:
[tex]C \times \frac{1-(1+r)^{-time} }{rate} = PV\\[/tex]
C 76 dollars
time 5 years
rate 0.05
[tex]76 \times \frac{1-(1+0.05)^{-5} }{0.05} = PV\\[/tex]
PV $329.0402
The net present value will be the present value less investment
329.04 - 167 = 162.04