In its first month of operations, Literacy for the Iliterate opened a new bookstore and bought merchandise in the following order: (1) 320 units at $6 on January 1, (2) 540 units at $7 on January 8, and (3) 840 units at $9 on January 29 Assume 1,035 units are on hand at the end of the month, calculate the cost of goods available for sale ending inventory, and cost of goods sold under the (a) FIFO, (b) LIFO, and (c) weighted average cost flow assumptions. Assume a periodic inventory system is used. (Round "Cost per Unit" to 2 decimal places.) Weighted Average Cost FIFO Cost of Goods Available tor Sale Ending Inventory Cost of Goods Sold