on march 1, the sfg corp bought 400 hats at $10 each. 2. on march 10, the sfg corp bought 600 hats at $12 each. 3. on march 15, the sfg corp bought 400 hats at $15 each 4. on march 20, the sfg corp bought 600 hats at $16 each. 5. on march 31, the sfg corp counted 500 hats remaining in inventory 6. assume that each hat that was sold, was sold for $40 each 47)compute the cost of goods sold using fifo