The charges to Work in Process-Assembly Department for a period, together with information concerning production, are as follows. All direct materials are placed in process at the beginning of production. Bal., 9,000 units, 40% completed Direct materials, 212,000 units @ $1.6 Direct labor Factory overhead Bal., 2 units, 70% completed Work in Process-Assembly Department 26,640 To Finished Goods, 207,000 units 339,200 568,000 220,840 Cost per equivalent units of $1.60 for Direct Materials and $3.70 for Conversion Costs. 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 0000 c. Assuming that the direct materials cost per unit did not change from the preceding period, did the conversion costs per equivalent unit increase, decrease, or remain the same for the current period?