Lan Enterprises uses a periodic inventory system for buckets it sells. It had a beginning inventory on April 1 of 80 units at a cost of $6 per unit. During April, the following purchases and sales were made. Instructions: Compute the April 30 ending inventory and April cost of goods sold under (a) average cost, (b) FIFO, and (c) LIFO. Provide appropriate supporting calculations. (1) Average - Ending Inventory = $ Cost of Goods Sold = $ (2) FIFO - Ending Inventory = $ Cost of Goods Sold = $ (3) LIFO - Ending Inventory = $ Cost of Goods Sold = $