17-30 Weighted-average method. Larsen Company manufactures car seats in its San Antonio plant. Each car seat passes through the assembly department and the testing department. This problem focuses on the assembly department. The process-costing system at Larsen Company has a single direct-cost category (direct materials) and a single indirect-cost category (conversion costs). Oirect materials are added at the beginning of the process, Conversion costs are added evenly during the process. When the assembly department finishes work on each car seat, it is immediately transferred to testing. Larsen Company uses the weighted-average method of process costing. Data for the assembly department for 0 ctober 2012 are as follows: bDegree of completion: direct materials, 7%; conversion costs, 70%. 1. For each cost category, compute equivalent units in the assembly department. Show physical units in the first column of your schedule. 2. For each cost category, summarize total assembly department costs for 0 ctober 2012 and calculate the cost per equivalent unit. 3. Assign total costs to units completed and transferred out and to units in ending work in process. 17-31 Journal entries (continuation of 17-30). Prepare a set of summarized journal entries for all 0ctober 2012 transactions affecting Work in ProcessAssembly. Set up a T-account for Work in Process-Assembly and post your entries to it. 17-32 FIF0 method (continuation of 17-30). Do Problem 17-30 using the FIF0 method of process costing. Explain any difference between the cost per equivalent unit in the assembly department under the weighted-average method and the FIFO method