The following data are from the accounting records of Niles Castings for year 2: Units produced and sold Total revenues and costs 85,000 Sales revenue Direct material costs Direct labor costs Variable manufacturing overhead Fixed manufacturing overhead Variable marketing and administrative costs Fixed marketing and administrative costs S 264,000 68,000 34,000 17,000 44,000 13,600 32,000 Required: a. Prepare a gross margin income statement Gross Margin Income Statement