Variable Costing Marsich Company has the following information for February: Sales $490.000 Variable cost of goods sold 220,500 Fixed manufacturing costs 83,300 Variable selling and administrative expenses 49.000 Fixed selling and administrative expenses 34,300 Determine the following for Marsich Company for the month of February: a. Manufacturing margin b. Contribution margin C. Operating income Feedback Check My Work a. Sales - variable cost of goods sold = manufacturing margin b. Manufacturing margin- variable selling and administrative expenses = contribution margin c. Contribution margin- fixed costs = income from operations