The route sheet to produce a part, used in medical instrument, is given in the Table. Two million parts are needed per year (8 hrs/day for 250 days/yr). Assuming the efficiency of each machine is 90%, determine the following: What is the required raw-material input? How many machines of each type? How many total workers needed? What is the unit cost for the part? [Assume worker wage & utility cost of $ 15/hr & $ 10/hr, respectively]