Question 4 (15 Marks) Marvellous Inc. uses the weighted average method in its process costing system. The following data concem the operations of the company's first processing department for recent month: 800 Work in process, beginning: Units in process Stage of completion with respect to materials Stage of completion with respect to conversion Costs in the beginning inventory: Materials cost Conversion cost 50% 20% $2,440 $4,928 Units started into production during the month Units completed and transferred out 15,000 15,600 Costs added to production during the month: Materials cost Conversion cost $96,470 $476,362 Work in process, ending: Units in process Stage of completion with respect to materials Stage of completion with respect to conversion 200 50% 90% Required: Using the weighted average method, a. Determine the equivalent units of production for materials and conversation costs (4 marks) k b. Determine the cost per equivalent unit for materials and conversion costs (4 marks) Determine the cost of units transferred out of the department during the month (3 marks) d. Determine the cost of ending work-in-process inventory in the department (4 marks)