Current Attempt in Progress On January 3, Blue Corp. purchased three portable electronic keyboards for $583 each. On January 20, it purchased three more of the same model keyboards for $431 each. During the month, it sold two keyboards; one that Blue purchased on January 3 and one that it purchased on January 20. (a) A Calculate the cost of goods sold and ending inventory for the month using specific identification. Cost of goods sold Ending inventory 6A SA $