The units of an item available for sale during the year were as follows:

Jan.

1

Inventory

6 units at $50

$ 300

Mar. 20

Purchase

14 units at $55

770

Oct. 30

Purchase

20 units at $62

1,240

Available for sale

40 units

$2,310

There are 16 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost using (a) the first in, first out (FIFO) method, (b) the last in, first out (LIFO) method, and (c) the average cost method.