Krepps Corporation produces a single product Last year, Krepps manufactured 34,080 units and sold 28,200 units. Production costs for the year were as follows: 14 Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead 259,008 153,360 269,232 443,040 01:40:30 Sales totaled $1,494,600 for the year, variable selling and administrative expenses totaled $163,560, and fixed selling and administrative expenses totaled $224,928. There was no beginning inventory. Assume that direct labor is a variable cost. cBook The contribution margin per unit was Multiple Choice O $28.30 per unit $33.00 per unit O O $2720 per unit $22.70 per unit