7) Treated Lumber Company specializes in processing treated wood. All direct materials are included at the inception of the sawing process and conversion is applied at the end of the process. For December there was no beginning inventory in the sawmill. Direct materials totalled $399,750 for the month and conversion costs totalled $165,000. work-in-process records revealed that 75,000 boardmetres in December and that 55,000 board only in respect to direct materials costs. were started metres were completed. Ending work-in-process units are complete Required: a. What is the total manufacturing cost per equivalent unit (boardmetres) for D ecember? What are the costs assigned to completed boardmetres in December? What are the costs transferred out during December? What are the amounts assigned to December's ending work-in-process inventory? c. d