[The following information applies to the questions displayed below.] Alexandra's Boutique has the following transactions related to its top-selling Gucci purse for the month of October. Alexandra's Boutique uses a periodic inventory system. 3. Using LIFO, calculate ending inventory and cost of goods sold at October 31 . following information applies to the questions displayed below.] Alexandra's Boutique has the following transactions related to its top-selling Gucci purse for the month of October. Alexandra's Boutique uses a periodic inventory svstem. - Using weighted-average cost, calculate ending inventory and cost of goods sold at October 31 . (Round your intermediate alculations to 4 decimal places and final answers to 2 decimal places.)