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January 1 inventory balance 15 units at $350 per unit January 4 purchase 50 units at $375 per unit January 15 sale 40 units at $550 per unit February 8 purchase 80 units at $405 per unit February 15 sale 70 units at $550 per unit 7) Refer to the table above. What is the cost of goods sold for the two months assuming that Sam's uses the perpetual FIFO inventory method? A) $42,225 B) $56,400 C) $48,900 D) $38,900