Jellico Inc.'s projected operating income (based on sales of 180,000 units) for the coming year is as follows:

Required: Compute: (a) variable cost per unit, (b) contribution margin per unit, (c) contribution margin ratio, (d) break-even point in units, and (e) break-even point in sales dollars. How many units must be sold to earn operating income of $296,400? Compute the additional operating income that Jellico would earn if sales were $50,000 more than expected. For the projected level of sales, compute the margin of safety in units, and then in sales dollars. Compute the degree of operating leverage. (Note: Round answer to two decimal places.) Compute the new operating income if sales are 10% higher than expected.