Brianna's Boutique has the following transactions related to its top-selling Gucci purse for the month of October. Date Transactions Units Unit Cost Total Cost October 1 Beginning inventory 6 $ 890 $ 5,340 October 4 Sale 4 October 10 Purchase 5 900 4,500 October 13 Sale 3 October 20 Purchase 4 910 3,640 October 28 Sale 7 October 30 Purchase 6 920 5,520 $ 19,000 3. Using LIFO, calculate ending inventory and cost of goods sold at October 31