Income statements under absorption and variable costing Gallatin County Motors Inc. assembles and sells snowmobile engines. The company began operations on July 1 and operated at 100% of capacity during the first month. The following data summarize the results for July: Sales (4,500 units) $2,700,000 Production costs (5,000 units): Direct materials $1,290,000 Direct labor 554,500 Variable factory overhead 90,500 Fixed factory overhead 142,000 2,077,000 Selling and administrative expenses: Variable selling and administrative expenses $64,400 Fixed selling and administrative expenses 27,000 91,400 This information has been collected in the Microsoft Excel Online file. Open the spreadsheet, perform the required analysis, and input your answers in the questions below. Hitititi Open spreadsheet a. Prepare an income statement according to the absorption costing concept. Gallatin County Motors Inc. Absorption Costing Income Statement For the Month Ended July 31 Cost of goods sold Direct labor Direct materials Fixed factory overhead costs Sales b. Prepare an income statement according to the variable costing concept. Gallatin County Motors Inc. Variable Costing Income Statement For the Month Ended July 31 $ $ Contribution margin Fixed selling and administrative expenses Manufacturing margin Sales Variable selling and administrative expenses $ Fixed costs: $ $ c. What is the reason for the difference in the amount of Operating income reported in (a) and (b)? Under the method, the fixed manufacturing cost included in the cost of goods sold is matched with the revenues. Under all of the fixed manufacturing cost is deducted in the period in which it is incurred, regardless of the amount of inventory change. Thus, when inventory increases, the income statement will have a higher Operating income than will the variable costing income statement