M7-20 to 22 (Algo) (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) 300 units at $5 on January 1 (2) 500 units at $9 on January 8, and (3) 910 units at $10 on January 29. Assume 1,110 units are on hand at the end of the month. M7-21 (Algo) (Supplement 7A) Calculating Cost of Goods Sold and Ending Inventory under Perpetual LIFO [LO 7-91) Calculate the cost of goods available for sale, cost of goods sold, and ending inventory under the LIFO. Assume perpetual inventory system and sold 600 units between January 9 and January 28, (Round your intermediate calculations to 2 decimal places.)