Lime company purchased 200 units for $30 each on January 31. It purchased 120 units for $40 each on February 28. It sold 175 units for $55 each from March 1 through December 31. If 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.) $6000 $10,800 $4800 O $6450