16 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. rt 4 of 4 Date October 1 October 4 October 10 Transactions Units Cost per Unit Total Cost Beginning inventory 6 $860 Sale Purchase October 13 Sale nts October 20 Skipped October 28 October 30 Purchase Sale Purchase 6453476 $ 5,160 870 4,350 880 3,520 890 5,340 $18,370 eBook Print References 4. Using weighted-average cost, calculate ending inventory and cost of goods sold at October 31. (Do not round intermediate calculations. Round your final answers to 2 decimal places.) Ending inventory Cost of goods sold