Mavis Inc. uses the Weighted Average method in its process costing system. The following data concern the operations of the company's first processing department for a recent month: Work in process, beginning: Units in process 100 Stage of completion with respect to materials 80% Stage of completion with respect to conversion 60% Costs in the beginning inventory: Materials cost Conversion cost $376 $2.376 Units started into production during the month Units completed and transferred out 26.000 25.700 Costs added to production during the month: Materials cost Conversion cost $98,645 5831.531 Costs added to production during the month: Materials cost Conversion cost $98,645 $831,531 Work in process, ending: Units in process Stage of completion with respect to materials Stage of completion with respect to conversion ??? 70% 50% Required a. Prepare a production report for the department using the Weighted Average method and write the resulting journal entry to transfer the inventory to the next department. (14 marks) b. If the company had used the FIFO method, what would the cost per unit have been for Materials and for Conversion? (4 marks)