Problem 6-1A Calculate ending inventory and cost of goods sold for four inventory methods (LO6-3) [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. Unit Cost Units 6 4 5 $760 Total Cost $ 4,560 770 3,850 Date October 1 October 4 October 10 October 13 October 20 October 28 October 30 Transactions Beginning inventory Sale Purchase Sale Purchase Sale Purchase 780 3,120 4 7 B 790 6,320 $17,850 Problem 6-1A Part 3 3. Using LIFO, calculate ending inventory and cost of goods sold at October 31. Ending inventory Cost of goods sold