In its first month of operations, Swifty Company made three purchases of merchandise in the following sequence: (1) 310 units at $7, (2) 470 units at $8, and (3) 230 units at $9. Assuming there are 370 units on hand, compute the cost of the ending inventory under the (a) FIFO method and (b) LIFO method. Swifty uses a periodic inventory system.