Question

Serenity Books has the following transactions in August related to merchandise inventory.

Aug. 1 Beginning merchandise inventory, 10 books @ \(15 each

3 Sold 3 books @ \)20 each

12 Purchased 8 books @ \(18 each

15 Sold 9 books @ \)20 each

20 Purchased 4 books @ \(20 each

28 Sold 5 books @ \)25 each

c. Determine the cost of goods sold and ending merchandise inventory by preparing a perpetual inventory record using the LIFO inventory costing method.

Short answer

Cost of goods sold: $329

Ending Inventory: $75

Step-by-step solution

LIFO inventory costing under perpetual record

LIFO costing is a cost flow assumption of the last-in-first-out order for the issued inventory. Perpetual record is the method of updating inventory accounts continuously for each event. So LIFO inventory under perpetual record is the method of applying LIFO assumption for continuous updating of inventory records.

Computation of COGS and Ending Inventory under LIFO

Date	Purchase/opening			Sales			Balance
	Units	Cost per unit	Amount	Units	Cost per unit	Amount	Units	Cost per unit	Amount
Aug1	10	$15	$150				10	$15	$150
3				3	$15	$75	7	$15	$105
12	8	$18	$144				7 8	$15 $18	$249
15				8 1	$18 $15	$159	6	$15	$90
20	4	$20	$80				6 4	$15 $20	$170
28				4 1	$20 $15	$95	5	$15	$75
Total	22		$374	17		$329	5		$75