Three identical units of merchandise were purchased during July, as follows: Date Product T Units Cost July 3 Purchase 1 $30.00 10 Purchase 1 33.00 24 Purchase 1 36.00 Total 3 $99.00 Average cost per unit $33.00 Assume one unit sells on July 28 for $47.00. Determine the gross profit, cost of goods sold, and ending inventory on July 31 using (a) first-in, first-out, (b) last-in, first-out, and (c) average cost flow methods.

Date Product Total Units Units Cost

July 3 Purchase 1 $30.00

10 Purchase 1 33.00

24 Purchase 1 36.00

Total 3 $99.00

Average cost per unit $33.00

Assume one unit sells on July 28 for $47.00.

Ending Inventory

(a) first-in, first-out, = 1 unit at $ 36 + 1 unit at $ 33 = $ 69

(b) last-in, first-out, = 1 unit at $ 30 + 1 unit at $ 33 = $ 63

(c) average cost flow methods = 2 units at $ 33 = $ 66

Cost of Goods Sold

(a) first-in, first-out, = Purchases - FIFO Ending Inventory = $ 99 - $ 69 = $ 30

(b) last-in, first-out, = Purchases - LIFO Ending Inventory = $ 99 - $ 63 = $ 36

(c) average cost flow methods = Purchases - Avg Cost Ending Inventory = $ 99 - $ 66 = $ 33

Gross Profit

(a) first-in, first-out, = Sales - FIFO CGS = $ 47-$ 30 = $17

(b) last-in, first-out, = Sales - LIFO CGS = $ 47 - $ 36 = $11

(c) average cost flow methods = Sales - Avg Cost CGS = $ 47 - $ 33 = $ 14

Given that

July 1 = 1 unit purchased at $30

July 10 = 1 unit purchased at $33

July 24 = 1 unit purchased at $36

Total cost = $99

Average cost per unit = $33

Assuming sales of 1 unit on July 28 at $47

A. FIFO

gross profit = revenue - cost

= 47 - 30

= $17

Cost of goods = $30

Ending inventory = 99 - 30

= $69

B. LIFO

gross profit = revenue - cost

= 47 - 36

= $11

Cost of goods = $36

Ending inventory = total cost - cost of goods sold

= 99 - 36

= $63

C. Average

Gross profit = revenue - cost

= 47 - 33

= $14

Cost of goods = $33

Ending inventory = 99 - 33

= $66