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 516,588 and the fixed selling and administrative expenses were 57,170, prepare an income statement according to the vanat costing concept. Round all final answers to whole dollars. T check My When Sales - (Variable Cost of Goods Manufactured * Variable Costing Ending inventory ") in Manufacturing Margin: Manufacturing Margin - Variable Setling and Administrative Expenses = Contribution Margin; Contribution Margin - (Foxed Manufacturing Costs + Fixed Selling and Administrative Expenses) = Operating incorne - Varable Cost of Gooes Manufactured = Totat Cost of Goods Manufactured - Foced Manufacturing Cost * Variable Costing Ending Inventory = (Variable Cost of Goods Manufactured/Total Units of Goods Manufoctured) x Absorption Costing Ending Inventocy Units (given)