The charges to Work in Process-Assembly Department for a period, together with information concerning production, are as follows. All direct materials are pla process at the beginning of production. Work in Process-Assembly Department Bal., 4,000 units, 60% completed Direct materials, 94,000 units @ \$2 Direct labor Factory overhead Bal. ? units, 80% completed To Finished Goods, 92,000 units 15,200 188,000 217,500 84,580 ? a. Based on the above data, determine the different costs listed below. If required, round your interim calculations to two decimal places. 1. Cost of beginning work in process inventory completed this period. 2. Cost of units transferred to finished goods during the period. 3. Cost of ending work in process inventory. 4. Cost per unit of the completed beginning work in process inventory, rounded to the nearest cent. b. Did the production costs change from the preceding period? Yes