Hello, can someone please help me out with this exercise? I got the Weighted-average cost per unit correctly calculated and so confused for the rest. Thanks beforehand!

Problem 6-5A (Part Level Submission)

You are provided with the following information for Najera Inc. for the month ended June 30, 2017. Najera uses the periodic method for inventory.

Date				Description		Quantity		Unit Cost or Selling Price
June		1		Beginning inventory		40		$40
June		4		Purchase		135		44
June		10		Sale		110		70
June		11		Sale return		15		70
June		18		Purchase		55		46
June		18		Purchase return		10		46
June		25		Sale		65		75
June		28		Purchase		30		50

(a1) Calculate cost per unit. (Round answer to 2 decimal places, e.g. 5.25.)

Your answer is correct. Weighted-average cost per unit $44.44

(a2) Calculate ending inventory, cost of goods sold, gross profit under each of the following methods. (1) LIFO. (2) FIFO. (3) Average-cost. (Round average-cost method answers to 2 decimal places, e.g. 1,250.25 and other answers to 0 decimal places, e.g. 1,250. Use weighted-average unit cost rounded to 2 decimal places for computations.)

		LIFO		FIFO		AVERAGE-COST
The ending inventory		$		$		$
The cost of goods sold		$		$		$
Gross profit		$		$		$

(a3) The parts of this question must be completed in order. This part will be available when you complete the part above.

(b) The parts of this question must be completed in order. This part will be available when you complete the part above.