On January 3, Ayayai Corp. purchased three portable electronic keyboards for $609 each. On January 20 , it purchased two more of the same model keyboards for $499 each. During the month, it sold two keyboards; one that Ayayai purchased on January 3 and one that it purchased on January 20. (a) Calculate the cost of goods sold and ending inventory for the monthusing specific identification. Cost of goods sold $ Ending inventory