Timekeeper Inc. manufactures clocks on a highly automated assembly line. Its costing system uses two cost categories, direct materials and conversion costs. Each product must pass through the Assembly Department and the Testing Department. Direct materials are added at the beginning of the production process. Conversion costs are allocated evenly throughout production. Timekeeper Inc. uses weighted - average costing. Data for the Assembly Department for June 2017 are: Work in process, beginning inventory 340 units Direct materials (100% complete) Conversion costs (45% complete) Units started during June 960 units Work in process, ending inventory: 170 units Direct materials (100% complete) Conversion costs (80% complete) Costs for June 2017: Costs for June 2017: Work in process, beginning inventory: Direct materials Conversion costs Direct materials costs added during June Conversion costs added during June $90,500 $137,000 $604,000 $403,000 What amount of direct materials costs is assigned to the ending Work-in - Process account for June? (Round intermediary calculations to the nearest whole dollar.) O A. $72,655 O B. $90,780 OC. $48,510 OD. $116,664