Break-Even Sales and Sales Mix for a Service Company Northern Green Airways provides air transportation services between Seattle and San Diego. A single Seattle to San Diego round-trip flight has the following operating statistics: Fuel $5,302 Flight crew salaries 4,061 Airplane depreciation 1,917 Variable cost per passenger—business class 40 Variable cost per passenger—economy class 30 Round-trip ticket price—business class 530 Round-trip ticket price—economy class 260 It is assumed that the fuel, crew salaries, and airplane depreciation are fixed, regardless of the number of seats sold for the round-trip flight. a. Compute the break-even number of seats sold on a single round-trip flight for the overall product, E. Assume that the overall product is 20% business class and 80% economy class seats. Total number of seats at break-even seats b. How many business class and economy class seats would be sold at the break-even point? Business class seats at break-even seats Economy class seats at break-even seats