Required information [The following information applies to the questions displayed below.) In its first month of operations, Literacy for the Illiterate opened a new bookstore and bought merchandise in the following order: (1) 210 units at $9 on January 1, (2) 570 units at $10 on January 8, and (3) 870 units at $11 on January 29. Assuming 1,080 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 weighted average cost flow assumptions. Assume a periodic inventory system is used. (Round "Cost per Unit" to 2 decimal places.) Cost of Goods Available for Sale Ending Inventory Cost of Goods Sold Weighted Average Cost