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Sandra's Purse Boutique has the following transactions related to its top$-$selling Guccipurse for the month of

October. Sandra's Purse Boutique uses a periodic inventory system.

$1.$ Using FIFO, calculate ending inventory and cost of goods sold at October $31.$

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

$3.$ Using weighted$-$average cost, calculate ending inventory and cost of goods sold at October $31.($Round your intermediate and final answers to $2$ decimal places.$)$