Altira Corporation provides the following information related to its merchandise inventory during the month of August 2021:
 

Aug.1	Inventory on hand—3,900 units; cost $7.20 each.
8	Purchased 19,500 units for $7.40 each.
14	Sold 15,600 units for $13.90 each.
18	Purchased 11,700 units for $7.50 each.
25	Sold 14,600 units for $12.90 each.
28	Purchased 5,900 units for $5.80 each.
31	Inventory on hand—10,800 units.

 
Required:
Using calculations based on a periodic inventory system, determine the inventory balance Altira would report in its August 31, 2021, balance sheet and the cost of goods sold it would report in its August 2021 income statement using each of the following cost flow methods.