Sales Variable Costing Income Statement For the Year Ended March 31, 20Y1 $754,000 Variable cost of goods sold: Variable cost of goods manufactured Inventory, March 31 Total variable cost of goods sold Manufacturing margin Total variable selling and administrative expenses Contribution margin Fixed costs: $425,000 (62,500) (362,500) $391,500 (89,900) $301,600 Fixed manufacturing costs $193,800 Fixed selling and administrative expenses 60,900 Total fixed costs (254,700) $46,900 Operating income Determine the unit cost of goods manufactured, based on (a) the variable costing concept and (b) the absorption costing concept. Variable costing Absorption costing