Power Audio Inc. manufactures audio speakers, Each speaker requires $123 per unit of direct materials. The speaker manufacturing assembiy cell includes the following estimated costs for the period: Speaker assembly cell, estimated costs: The operating plan calls for 160 operating hours for the period. Each speaker requires 15 minutes of cell process time. The unit seling price for each speaker is $333. During the period, the following transactions occurred: 1. Purchased materials to produce 390 speaker units. 2. Applied conversion costs to production of 370 speaker units. 3. Completed and transferred 355 speaker units to finished goods. 4. Sold 340 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 amour box does not require an entry, leave it blank. b. Determine the ending balance of raw and in process inventory and finkhed goods inventory. Raw and in Process Inventory, ending balance \$ Finished Goods Inventory, ending balance s