Part B Black Horse Ceramic manufactures high quality ceramic tiles. The company uses a weighted-average process cost system. Materials are added at several stages during the process. Labour and overhead costs are incurred uniformly. Production and cost data for the Grinding Department during October 2016 are presented below. Production Data Units in process, Oct 1 (materials and conversion 55% complete) Units started into production during October Units completed and transferred out Units in process, Oct 31 (materials 70% complete, conversion 40% complete) 20,000 70,000 40,000 | Cost Data RM Work in process inventory, Oct 1 Materials cost Conversion cost 17,500 21,900 Cost added during October: Materials cost Conversion cost 80,000 120,000 Instruction Prepare a production cost report for the Grinding Department for the month of October 2016. (16 marks)