Answer:
a. Joplin Industries Inc.
Absorption Costing Income Statement
For the Month Ended June 30
Sales $81,000,000
Less: Beginning inventory $4,387,200
Cost of goods manufactured $45,756,000
Cost of goods sold $50,143,200
Gross Profit $30,856,800
Selling and Administrative Expenses $13,122,000
Operating Income $17,734,800
b. Joplin Industries Inc.
Variable Costing Income Statement
For the Month Ended June 30
Sales $81,000,000
Variable cost of goods sold $40,500,000
Manufacturing Margin $40,500,000
Selling and Administrative Expenses $12,150,000
Contribution Margin $28,350,000
Fixed cost
Manufacturing cost $8,856,000
Selling and Admin Expenses $972,000
Total Fixed cost $9,828,000
Operating Income $18,522,000