A company purchased 200 units for $30 each on January 31. It purchased 170 units for $40 each on February 28. It sold 225 units for $55 each from March 1 through December 31. t the company uses the last - in, first-out inventory costing method, what is the amount of Cost of Goods Sold on the income statement for the year ending December 31? (Assume that the company uses a perpetual inventory system.) A. $6.800 B. $8,450 OC $6,000 D. $12.800 a