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 October 4 Transactions Units Unit Cost Beginning inventory 6 $770 Total Cost $ 4,620 Sale 4 October 10 Purchase 5 780 3,900 October 13 Sale 3 October 20 October 28 October 30 Purchase 4 790 3,160 Sale 7 Purchase 7 800 5,600 $17,280 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