3. Frosty, Inc, maintains a periodic inventory system, and recorded the following data during 2020: 1-1 Beginning Inventory 590 units @ $5.42 each 3-24 Purchase 640 units @ $5.45 each 5-1 Purchase 800 units @ $5.55 each 9.7 Purchase 360 units @ $5.59 each 11-15 Purchase 480 units @ $5.64 each 12-31 Ending Inventory 870 units Instructions: Calculate the cost of Merchandise Sold and Ending Inventory values, using each of the following cost flow assumptions: First-In, First-Out (FIFO) Last-In, First-Out (LIFO) Average Cost (Weighted Average) a. b