Suppose McKnight Corp.'s breakeven point is revenues of $1,600,000. Fixed costs are $640,000. Requirements 1. Compute the contribution margin percentage. 2. Compute the selling price if variable costs are $15 per unit. 3. Suppose 90,000 units are sold. Compute the margin of safety in units and dollars. 4. What does this tell you about the risk of McKnight making a loss? What are the most likely reasons for this risk to increase