Doon Company incurred the following costs while producing 480 units: direct materials, $14 per unit, direct labor, $29 per unit; variable manufacturing overhead, $19 per unit; total fixed manufacturing overhead costs. $7,680 variable selling and administrative costs, $12 per unit; total fixed selling and administrative costs, $4,320 There are no beginning inventories. What is the ending balance in Finished Goods Inventory using variable costing if 300 units are sold? OA $5.580 OB. $6,660 OC. $6,720 OD. $7.410 Next