In July, Panther's Corporation sold 3,900 units of its only product. Its total sales were $109,200, its total variable expenses were $70,200, and its total fixed expenses were $32,800. Required: a. Construct the company's contribution format income statement for July. b. Redo the company's contribution format income statement assuming that the company sells 3,400 units. Panther Corporation has provided the following contribution format income statement. All questions concern situations that are within the relevant range. Sales (3,000 units) Variable expenses Contribution margin Fixed expenses Net operating income $180,000 126,000 54,000 52,200 $1,800 Required: If the selling price increases by $3 per unit and the sales volume decreases by 300 units, what would be the estimated net operating income?* Panther Corporation has provided the following contribution format income statement. All questions concern situations that are within the relevant range. Sales (3,000 units) $180,000 Variable expenses 126,000 Contribution margin 54,000 Fixed expenses 52,200 Net operating income $1,800 Required: If the variable cost per unit increases by $4, spending on advertising increases by $3,000, and unit sales increase by 1,800 units, what would be the estimated net operating income