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Brianna's Boutique has the following transactions related to its top$-$selling Gucci purse for the month of October. Brianna's Boutique uses a periodic inventory system.

Date Transactions Units Unit Cost Total Cost

October $1$ Beginning inventory $6$ $$770$ $$4,620$

October $4$ Sale $4$

October $10$ Purchase $57803,900$

October $13$ Sale $3$

October $20$ Purchase $47903,160$

October $28$ Sale $7$

October $30$ Purchase $78005,600$

$$17,280$

$1.$ Calculate ending inventory and cost of goods sold at October $31,$ using the specific identification method. The October $4$ sale consists of purses from beginning inventory, the October $13$ sale consists of one purse from beginning inventory and two purses from the October $10$ purchase, and the October $28$ sale consists of three purses from the October

Ending inventory:

Cost of goods sold:

$2.$ Using FIFO, calculate ending inventory and cost of goods sold at October $31.$

Ending inventory :

Cost of goods sold:

$3.$ Using LIFO, calculate ending inventory and cost of goods sold at October $31.$

Ending inventory :

Cost of goods sold:

$4.$ Using weighted$-$average cost, calculate ending inventory and cost of goods sold at October $31.($Round your intermediate cal

Ending inventory :

Cost of goods sold: