Barnes Company needs 20,000 units of Part WS40. It can make the part in-house or buy it from Stark Industries for $75 per unit. If Barnes outsources Part WS40, only 50% of the fixed costs associated with the part will be avoided. If Barnes makes the part, the costs are: Required (you may summarize your answers in this space and submit your calculations and support on your scratch papers): 1. What should Barnes do? Show your calculations as best as you can