$30 Cu 2: (4.0 marks) Menlo Company distributes a single product. The company's sales and costs for last month follow: Total Per Unit Sales $450,000 Variable costs 180,000 12 Contribution margin 270,000 $18 Fixed cost 216,000 Net operating income S54,000 Required: 1. What is the monthly break-even point in unit sales and in dollar sales? (1.0 mark) 2. What is the total contribution margin at the break-even point? (1.0 mark) 3. How many units would have to be sold each month to cam a target profit of $90,000? (1.0 mark) 4. If sales increase by $50,000 per month and there is no change in fixed cost, by how much would you expect monthly net operating income to increase? (1.0 mark)