base case) Required: A. Prepare a contribution margin income statement for the base case B. Assuming the units sold remains at 30,000, what would the operating profit be if the unit sales price decreases 15% C. Assuming the units sold remains at 30,000, what would the operating profit be if the unit variable cost increases 5%7 D. Assuming the units sold remains at 30,000, what would the operating profit be if the total fixed costs increase 10% Your answers to this open-ended assignment should be placed in the space below this line. A Sales Variable costs Contribution Margin Income Statement for the Base Case Contribution Margin Fixed cot Operating Profit B Sales Contribution Margin Income Statement with 15% Decrease in Unit Sales Price Variable costs Contribution Margin Fixed costs Operating Profit C Sales Contribution Margin Income Statement with Increase in Variable Cast of 5% Variable costs Contribution Margin Fixed costs Operating Prodi D Sales Contribution Margin Income Statement with Increase in Fixed Cast of 10% Variable costs Contribution Margis Fixed costs Operating Profit