Department G had 1,800 units 25% completed at the beginning of the period, 12,700 units were completed during the period, 1,500 units were 20% completed at the end of the period, and the following manufacturing costs debited to the departmental work in process account during the period: Work in process, beginning of period $27,900 Costs added during period: Direct materials (12,400 units at $9) 111,600 Direct labor 72,000 Factory overhead 24,000 All direct materials are placed in process at the beginning of production and the first-in, first-out method of inventory costing is used. What is the total cost of the departmental work in process inventory at the end of the period (round unit cost calculations to four decimal places and round your final answer to the nearest dollar)? a. $13,500 b. $15,221 c. $15,795 d. $20,534