Refries Refrigerator Company manufactures ice-makers for installation in refrigerators. The costs per unit for 20,000 units of ice-makers, are as follows: Direct materials. $7
Direct labor $12
Variable overhead $5
Fixed overhead$10
Total costs $34
Cool Compartments Inc. has offered to sell 20,000 ice-makers to Refrigerator Company for $28 per unit. If Refrigerator accepts Cool Compartments' offer, the facilities used to manufacture ice-makers could be used to produce water filtration units. Revenues from the sale of water filtration units are estimated at $80,000, with variable costs amounting to 60% of sales. In addition, $6 per unit of the fixed overhead associated with the manufacture of ice-makers could be eliminated. For Refrigerator Company to determine the most appropriate action to take in this situation, the total relevant costs of make vs. buy, respectively, are:.
a. $600,000 vs. $560,000.
b. $648,000 vs. $528,000.
c. $600,000 vs. $528,000.
d. $680,000 vs. $440,000.