Answer and Explanation:
Without discounting :
Return on investment(ROI) for year 1 = -$100000
Return on investment(ROI) for year 2 = -$95000
Return on investment(ROI) for year 3 =-$50000
Return on investment(ROI) for year 4 =$10000
With discounting(PV/(1+r)^n):
Return on investment for year 1 = 0.93×-$100000= -$93000
Return on investment for year 2= 0.87×-$95000= -$82650
Return on investment for year 3 = 0.82×-$50000=-$41000
Return on investment for year 4=
0.76×$10000= $7600