3. Using LIFO, calculate ending inventory and cost of goods doid at October 31. Answer is complete but not entirely correct. Brianna's Boutique has the following transactions related to its top-selling Guccipurse for the month Brianna's Boutique uses a periodic inventory system Problem 6-1A (Algo) Part 4 4. Using weighted-average cost, calculate ending inventory and cost of goods sold at Octobehis. (Round you calculations to 4 decimal places and final answers to 2 decimal places.)