The physical count of inventory at October 31 indicates that 8 units of inventory are on hand. Requirements Compute ending inventory and cost of goods sold using each of the following methods. Round all amounts to the nearest dollar. Specific unit cost, assuming four $ 160 units and four $ 170 units are on hand Weighted-average cost First-in first-out cost Use the data in exercise E6-30 to journalize the following for the periodic system: Total October purchases in one summary entry. All purchases were on credit, Total October sales in a summary entry. Assume that the selling price was $ 300 per unit and that all sales were on credit. October 31 entries for inventory. The company uses weighted-average cost. Post to the Cost of Goods Sold T-account to show how this amount is determined. Label each item in the account. Show the computation of cost of goods sold by the cost-of-goods-sold model