On October 31, the end of the first year of operations, Yankovich Inc. manufactured 2,000 units and sold 1,700 units. The following income statement was prepared; based on the variable costing concept: Yankovich Inc. Variable Costing Income Statement Sales For the Month Ended October 31 $663,000 Variable cost of goods sold: Variable cost of goods manufactured Inventory, October 31 Total variable cost of goods sold Manufacturing margin Total variable selling and administrative expenses Contribution margin Fixed costs: Fixed manufacturing costs Fixed selling and administrative expenses Total fixed costs $374,000 (56,100) (317,900) $345,100 (79,900) $265,200 $172,000 52,700 (224,700) $40,500 Operating income Determine the unit cost of goods manufactured, based on (a) the vanable costing concept and (b) the absorption costing concept (a) Variable costing 1 (b) Absorption costing