Required information The following information applies to the questions displayed below.) Sandra's Purse Boutique has the following transactions related to its top-selling Gucci purse for the month of October. Sandra's Purse Boutique uses a periodic inventory system Date Transactions Units Unit Cost Total Cost October 1 Beginning inventory 6 $ 760 $ 4,560 October Sale 4 October 1e Purchase 5 770 3,850 October 13 Sale 3 October 20 Purchase 3,120 October 28 Sale 7 October 30 Purchase 8 6,320 $17,850 4 4 780 790 3. Using LIFO, calculate ending inventory and cost of goods sold at October 31