Beginning inventory Purchase 1 Purchase 2 Purchase 3 Purchase 4 Purchase 5 Purchase 6 Purchase 7 Inventory Units Cost per unit 2,600 $ 12.00 2,200 $ 12.50 2.400 5 12.75 3,000 $ 13.25 2,500 $ 13.30 2,600 $ 13.70 2,100 $ 13.90 2,000 $ 14.00 Value $ 31,200.00 $ 27,500.00 $ 30,600.00 $ 39,750.00 $ 33,250.00 $ 35,620.00 $ 29,190.00 $ 28,000.00 Sales First Quarter Second Quarter Third Quarter Fourth Quarter Units 3,500 2,800 3,100 3,000 Price per unit $ 21.00 $ 21.75 $ 22.00 $ 22.50 Value $ 73,500.00 $ 60,900.00 $ 68,200.00 $ 67,500.00 Calculate and report the following values using each of three inventory valuation methods. including FIFO, LIFO, and average cost per unit: 1. Ending inventory 2. Cost of goods sold 3. Gross profit margin