West Company produces a part that is used in the manufacture of one of its products. The costs associated with the production of 25,000 units of this part are as follows: Direct materials Direct labour Variable factory overhead Fixed factory overhead $ 100,000 120,000 280,000 240,000 $740,000 of the fixed factory overhead costs, $80,000 is avoidable. Required: a) Assuming there is no alternative use for the facilities, should West take advantage of an offer from a supplier who is willing to sell West 25,000 units of the same part for $25 per unit? Show all supporting calculations. b) Assume that if the parts are purchased, West Company would free space that could be rented for $24,000 per year. Should West take advantage of an offer from a supplier who is willing to sell West 20,000 units of the same part for $25 per unit? Show all supporting calculations