Problem 7: Make a cost comparison between two conveyor machines Cost Installation Annual Maintenance Training Salvage Worth Annual Operation Cost Machine A $25k $5k $2k $1k $2k $6k Machine B $15k $8k $3k $1k $1k $11k The service life of both machines is 10 years. Use MACRS depreciation and calculate the value of each machine in year 4.At what rate of return after taxes B would be more attractive than A? Problem 7: Make a cost comparison between two conveyor machines Cost Installation Annual Maintenance Training Salvage Worth Annual Operation Cost Machine A $25k $5k $2k $1k $2k $6k Machine B $15k $8k $3k $1k $1k $11k The service life of both machines is 10 years. Use MACRS depreciation and calculate the value of each machine in year 4.At what rate of return after taxes B would be more attractive than A