Vintage Audio Inc. manufactures audio speakers. Each speaker requires $96 per unit of direct materials. The speaker manufacturing assembly cell ncludes the following estimated costs for the period: Speaker assembly cell, estimated costs: Labor Depreciation Supplies Power Total cell costs for the period $26,750 3,590 1,310 975 $32,625 The operating plan calls for 145 operating hours for the period. Each speaker requires 20 minutes of cell process time. The unit selling price for each speaker is $260. During the period, the following transactions occurred: 1. Purchased materials to produce 410 speaker units. 2. Applied conversion costs to production of 390 speaker units. 3. Completed and transferred 375 speaker units to finished goods. 4. Sold 355 speaker units. There were no inventories at the beginning of the period. a. Journalize the summary transactions (1)-(4) for the period. Do not round interim calculations. 1. Raw and In Process Inventory Accounts Payable 2. Raw and In Process Inventory Conversion Costs 3. Finished Goods Inventory Raw and In Process Inventory 4. Sale Accounts Receivable Sales 4. Cost Cost of Goods Sold Finished Goods Inventory 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