Lean Accounting Power Audio Inc. manufactures audio speakers. Each speaker requires $115 per unit of direct materials. The speaker manufacturing assembly cell includes the following estimated costs for the period: The operating plan calis for 165 operating hours for the period. Each speaker requires 20 minutes of cell process time. The unit selling price for each speaker is \$312. During the period, the following transactions occurred: 1. Purchased materials to produce 650 speaker units. 2. Applied conversion costs to production of 620 speaker units. 3. Completed and transferred 590 speaker units to finished goods. 4. Sold 565 speaker units. There were no inventories at the beginning of the period. a. Journalize the summary transactions (1)-(4) for the period. Round the per unit cost to the nearest cent and use in subsequent computations. If an amount box does not require an entry, leave it blank. b. Determine the ending balance of raw and in process inventory and finished goods inventory. Raw and In Process Inventory, ending balance $ Finished Goods Inventory, ending balance $