Make-or-Buy Decision Somerset Computer Company has been purchasing carrying cases for its portable computers at a purchase price of $24 per unit. The company, which is currently operating below full capacity, charges factory overhead to production at the rate of 40% of direct labor cost. The unit costs to produce comparable carrying cases are expected to be as follows: Direct materials $8.00 Direct labor 12.00 Factory overhead (40% of direct labor) 4.80 Total cost per unit $24.80 If Somerset Computer Company manufactures the carrying cases, fixed factory overhead costs will not increase and variable factory overhead costs associated with the cases are expected to be 25% of the direct labor costs. a. Prepare a differential analysis dated April 30 to determine whether the company should make (Alternative 1) or buy (Alternative 2) the carrying case. If an amount is zero, enter "0".