What does Lifo equal??

In its first month of operations, Literacy for the Illiterate opened a new bookstore and bought merchandise in the following order (1) 220 units at $6 on January 1, (2)640 units at $7 on January 8. and (3) 940 units at $8 on January 29. Assume 1.185 units are on hard at the end of the month, calculate the cost of goods available for salt, ending inventory, and cost of goods sold under the (a) FIFO. (6) LIFO, and (c) weighted average cost flow assumptions Assume a periodic inventory system is used (Round "Cost per Unit" to 2 decimal places.)