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. \begin{tabular}{llccc|} \hline & \multicolumn{1}{c}{ Transactions } & Units & Unit Cost & \multicolumn{2}{c}{ Total Cost } \\ Dctober 1 & Beginning inventory & 6 & $720 & $4,320 \\ 0ctober 4 & Sale & 4 & & \\ October 10 & Purchase & 5 & 730 & 3,650 \\ October 13 & Sale & 3 & & \\ October 20 & Purchase & 4 & 740 & 2,960 \\ 0ctober 28 & Sale & 7 & & \\ October 30 & Purchase & 6 & 750 & $15,430 \\ \hline \hline \end{tabular}