The raw material for a product has a cost of 12 8 dollars per unit. The burden rate for the equipment that is doing all the machining operations on the part is 348 dollars per hour, the required time to finish the part is 7.51 minutes per part while the setup time for the equipment it 1.81 hours If this part is produced using tot size of 73 units what percentage of the part cost is due to setup time? If the system must move to a 35 part lot size how much must the setup time be reduced to keep the setup cost per part constant? % Due to Setup = ________ % New Setup Time = _________ hours