M7-20 to 22 (Supplement 7A) Calculating Cost of Goods Sold and Ending Inventory under Perpetual FIFO, LIFO, and Weighted Average Cost [LO 7-S1) In its first month of operations, Literacy for the Illiterate opened a new bookstore and bought merchandise in the following order: (1) 400 units at $9 on January 1, (2) 600 units at $10 on January 8, and (3) 790 units at $11 on January 29. Assuming 990 units are on hand at the end of the month. M7-20 (Supplement 7A) Calculating Cost of Goods Sold and Ending Inventory under Perpetual FIFO [LO 7-S1) Calculate the cost of goods available for sale, cost of goods sold, and ending inventory under the FIFO. Assume perpetual inventory system and sold 800 units between January 9 and January 28. (Round your intermediate calculations to 2 decimal places.) FIFO Goods Available for Sale Cost of Goods Sold Ending Inventory Calculate the cost of goods available for sale, cost of goods sold, and ending inventory under the LIFO. Assume perpetual inventory system and sold 800 units between January 9 and January 28. (Round your intermediate calculations to 2 decimal places.) LIFO Goods Available for Sale Cost of Goods Sold Ending Inventory Calculate the cost of goods available for sale, cost of goods sold, and ending inventory under the weighted average cost flow assumptions. Assume perpetual inventory system and sold 800 units between January 9 and January 28. (Round your intermediate calculations to 2 decimal places.) Weighted Average Cost Goods Available for Sale Cost of Goods Sold Ending Inventory