Martin Inc. has sales of $491,000, variable expenses of $178,500, and fixed expenses of $147,800 a month. The company sells 4800 units per month to achieve this sales level. Construct a conribution income statment. Redo the income statement If the company sells 5200 units. Per Unit Sales Variable Expenses Contribution Margin Fixed Expenses Net Operating Income Per Unit Sales Variable Expenses Contribution Margin Fixed Expenses Net Operating Income