Using an interest rate of 8% per year, calculate the present worth for each of the processes and say which process should be selected (least cost) according to the analysis. First Cost, $ Annual Operating_ Cost, $ per year Salvage Value, $ Life, Years Process X $200,000 $45,000 $60,000 3 Process Y $350,000 $33,000 $100,000 6 Process Z $925,000 $10,000 infinite