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Problem 6-6A Alternative cost flowsperpetual LO2, 3 Case Defence sells smartphone cases and uses the perpetual inventory system. The following is information on the purchases and sales of Defender Box cases. On October 1, Case Defence had 28 units with a unit cost of $22. # Purchases Sales Date Units Unit Cost Units Unit Price Oct. 3 18 23 Oct. 6 $ 58 Oct. 12 28 25 Oct. 19 28 $ 58 Oct.23 38 1 Oct.30 33 $ 58 Oct.31 23 28 23 27 Required: 1. Calculate the dollar value of cost of goods sold and ending inventory for the month of October using the following methods. (Do not round intermediate calculations. Round weighted average all unit costs to two decimal places and round all other numbers to the nearest dollar.) Perpetual Inventory System FIFO Purchases Unit Cost Total Total Cost Sales (at cost) Unit Cost Inventory Balance Unit Cost Total Cost Units Sales COGS Units Beginning each) Sales revenue ($ Cost of goods sold Gross Margin Ending inventory Moving Weighted Average Purchases Unit Cost Total Total Cost Sales (at cost) Unit Cost Inventory Balance Total Cost Inventory Balance Calculations Units Sales COGS Units Unit Cost Beginning Sales revenue (S each) Cost of goods sold Gross Margin Ending inventory