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 $7 on January 1, (2) 450 units at $11 on January 8 , and (3) 940 units at $12 on January 29 . Assume 1,090 units are on hand at the end of the month. 17-20 (Algo) (Supplement 7A) Calculating Cost of Goods Sold and Ending Inventory under Perpetual =FO [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 600 units between January 9 and January 28. (Round your intermediate calculations to 2 decimal places.)