! Required information 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 $850 Total Cost $ 5,100 860 Date October 1 October 4 October 10 October 13 October 20 October 28 October 30 Transactions Beginning inventory Sale Purchase Sale Purchase Sale Purchase Units 6 4 5 3 4 7 8 4,300 870 3,480 880 7,040 $19,920 Problem 6-1A Part 4 4. Using weighted average cost, calculate ending inventory and cost of goods sold at October 31. (Round your intermediate and final answers to 2 decimal places.) Ending inventory Cost of goods sold