Check my work 4 7 points 012939 Assume (1) total sales are $300,000, (2) the direct labor cost of $40,000 is 25% of total conversion costs and 40% of total prime costs, (3) the total selling and administrative expense is $62,000. (4) the only variable selling and administrative expense is sales commissions of 4% of sales, (5) all manufacturing overhead costs are fixed costs, and (6) there are no beginning or ending inventories. What is the total contribution margin? Multiple Choice $200,000 $68,000 $80,000 $188,000