17-42 FIFO method (continuation of 17-41). 1. Complete Problem 17-41 using the FIFO method of process costing. Required 2. If you did Problem 17-41, explain any difference between the cost of work completed and transferred out and the cost of ending work in process in the assembly department under the weighted- average method and the FIFO method. Should McKnight's managers choose the weighted-average method or the FIFO method? Explain briefly.