Larcker Manufacturing's cost accountant has provided you with the following information for January operations: 21 per unit Direct materials Fixed manufacturing overhead costs Sales price Variable manufacturing overhead Direct labor Fixed marketing and administrative costs Units produced and sold Variable marketing and administrative costs $ 135,000 79 per unift 12 per unit 24 per unit $ 117,000 30,000 5 per unit Required: a. Prepare a gross margin income statement. Gross Margin Income Statement Sales revenue Fixed manufacturing overhead costs Variable manufacturing costs Gross margin Variable marketing and administrative costs Fixed marketing and administrative costs Operating profit b. Prepare a contribution margin income statement. Contribution Margin Income Statement Sales revenue Variable marketing and administrative costs Variable manufacturing costs Contribution margin Fixed manufacturing overhead costs Fixed marketing and administrative costs Operating profit