Brianna's Boutique has the following transactions related to its top-selling Gucci purse for the month of October. Brianna's Boutique uses periodic inventory system. Date October 1 Transactions Beginning inventory October 4 Sale October 10 October 13 October 20 October 28 October 30 Purchase E Sale Purchase Sale Purchase Units Unit Cost Total Cost 6453476 $800 $4,800 810 4,050 820 3,280 830 4,980 $17,110 4. Using weighted-average cost, calculate ending inventory and cost of goods sold at October 31. (Round your intermediate calculations to 4 decimal places and final answers to 2 decimal places.) Ending inventory Cost of goods sold