Chase Inc. uses the weighted average method in its process costing system. This month, the beginning inventory in the first processing department consisted of 800 units. The costs and percentage completion of these units in beginning inventory were: Materials costs.. Conversion costs ................ Cost $6,000 $9,900 Percent Complete 50% 30% A total of 9,200 units were started and 8,200 units were transferred to the second processing department during the month. The following costs were incurred in the first processing department during the month: Materials costs.................... Conversion costs .... $113,900 $322,500 The ending inventory was 80% complete with respect to materials and 20% complete with respect to conversion costs. Required (7 Points): Using the weighted average method: a. Determine the equivalent units of production for materials and conversion costs. b. Determine the cost per equivalent unit for materials and conversion costs, and the total product cost per equivalent unit. c. Determine the cost of units transferred out of the department during the month. d. Determine the cost of ending work in process inventory in the department