Answer:
Part 1.
Contribution margin income statement for the year.
Sales (4,900 x 340) 1,666,000
<u>Less Variable Costs </u>
Plastic for casing 171,500
Wages of assembly workers 490,000
Drum stands 215,600
Sales commissions 161,700 (1,038,800)
Contribution 627,200
<u>Less Fixed Costs</u>
Taxes on factory 6,000
Factory maintenance 12,000
Factory machinery depreciation 72,000
Lease of equipment for sales staff 12,000
Accounting staff salaries 62,000
Administrative management salaries 142,000 (306,000)
Net Income 321,200
Part 2.
Contribution margin per unit = $627,200 / 4,900 = $128.00
Contribution margin ratio = $627,200/ $1,666,000 = 37.65 %
Explanation:
The Contribution Margin Income Statement calculates separately the contribution and net income as shown above.