Variable Costing Income Statement On April 30, the end of the first month of operations, Joplin Company prepared the following income statement, based on the absorption costing concept If the fixed manufacturing costs were $20,020 and the fixed selling and administrative expenses were $9,640, prepare an income statement according to the variable costing concept. Round all final answers to whole dollars. Joplin Company Variable Costing Income Statement For the Month Ended April 30 Sales Variable cost of goods sold: Fixed costs: Fixed manufacturing costs Fixed selling and administrative expenses Total fixed costs Operating income $