Weighted average cost flow method under perpetual inventory system The following units of a particular item were avalable for sale during the calendar vear: The firm uses the weighted average cost method with a perpetual inventory system. Determine the cost of goods sold for each sale and the inventory balance after each sale. Present the data in the form ulustrated in Exhibut 5 , \begin{tabular}{|c|c|c|c|c|c|c|} \hline Date & PurchasesQuantity & PurchasesUnitcost & PurchasesTotalcost & CostofGoodsSoldQuantity & CostofGoodsSoldUnitCost & CostofGoodsSoldTotalCost \\ \hline Jan. 1 & & & & & & \\ \hline Apr: 19 & & & & & & \\ \hline June 30 & & & & & & \\ \hline Sept 2 & & & & & & - \\ \hline Nov, 15 & & & & & & \\ \hline Dec. 31 & Balances & & & & & \\ \hline \end{tabular} CostofGoodsSoldTotalCost InventoryQuantity InventoryUnitCostInventoryTotalCost