Menlo Company distributes a single product. The company's sales and expenses for last month follow: Sales Variable expenses Total $ 612,000 428,400 Per Unit $ 40 28 $ 12 Contribution margin Fixed expenses 183, 600 148,800 Net operating income $ 34,800 Required: 1. What is the monthly break-even point in unit sales and in dollar sales? Break-even point in unit sales Break-even point in sales dollars $ 12,400 units 496,000 2. Without resorting to computations, what is the total contribution margin at the break-even point? Total contribution margin $ 148,800 4. Refer to part 3 and now assume that the tax rate is 40%. How many units would need to be sold each month to an after-tax target profit of $55,200? (Round the final answer to the nearest whole number.) Unit sales required units 5. Refer to the original data. Compute the company's margin of safety in both dollar and percentage terms. (Round your percentage answer to 2 decimal places (i.e.1234 should be entered as 12.34).) Dollars Percentage Margin of safety % 6. What is the company's CM ratio? If monthly sales increase by $78,000 and there is no change in fixed expenses, by how much would you expect monthly net operating income to increase? CM ratio Net operating income increases by