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 October 1 Transactions Beginning inventory Units 6 Unit Cost $790 Total Cost $ 4,740 October 4 Sale 4 October 10 Purchase 5 800 4,000 October 13 Sale 3 October 20 Purchase 4 810 3,240 October 28 Sale 7 October 30 Purchase 8 820 6,560 $18,540 3. Using LIFO, calculate ending inventory and cost of goods sold at October 31. Ending inventory Cost of goods sold Check m