Altira Corporation provides the following information related to its inventory during the month of August $2024$:

August $1$ Inventory on hand$4,000$ units; cost $$6\mathrm{.}30$ each.

August $8$ Purchased $16,000$ units for $$6\mathrm{.}50$ each.

August $14$ Sold $12,000$ units for $$13\mathrm{.}00$ each.

August $18$ Purchased $12,000$ units for $$6\mathrm{.}60$ each.

August $25$ Sold $14,000$ units for $$12\mathrm{.}00$ each.

August $28$ Purchased $8,000$ units for $$6\mathrm{.}80$ each.

August $31$ Inventory on hand$14,000$ units.

Required:

Using calculations based on a periodic inventory system, determine the inventory balance Altira would report in its August $31,2024,$ balance sheet and the cost of goods sold it would report in its August $2024$ income statement using each of the following cost flow methods.