REI sells snowboards. Assume the following information relates to REI's purchases of snowboards during September. During the same month, 109 snowboards were sold. REI uses a periodic inventory system.

(a)

Date

Explanation

Units

Unit Cost

Total Cost

Sept. 1

Inventory

11

$119

$ 1,309

Sept. 12

Purchases

50

122

6,100

Sept. 19

Purchases

58

123

7,134

Sept. 26

Purchases

23

124

2,852

Totals

142

$17,395

a) Compute the ending inventory on September 30 using FIFO, LIFO, and average-cost. (Round average cost per unit to 3 decimal places, e.g. 125.153 and final answers to 0 decimal places, e.g. 125.)

b) Compute the cost of goods sold for the month using the FIFO, LIFO, and average-cost methods. (Round average cost per unit to 3 decimal places, e.g. 125.153 and final answers to O decimal places, e.g. 125.)