Intersection Driving School charges $1,600 per student to prepare and administer written and driving tests. Variable costs of $1,120 per student include trainers' wagas, study materials, and gasoline. Annual fixed costs of $336,000 include the training facility and fleet of cars: Read the requirements. Requirement 1. For each of the following independent situations, calculate the contribution margin per unit and the breakeven point in units: Begin by showing the formula for contribution margin per unit and then enter the amounts to calculate the contribution margin per unit for each situation. (Abbreviation used: CM = contribution margin.) Requirements 1. For each of the following independent situationts, calculate the contribution margin per unil and tho breakeven point in units by first reforring to the original data provided: a. Breakevers point with no chango in in formation b. Decrease sales price to $1,400 per student c. Decraase variable costh to $640 per student. d. Decreaise fixad costs to $236.200 2. Compart the inipact of changes in the salesprice, variable costs and fored coster on the contribution fargin por untt and tha bro akowort point int units