Exercise 19-4 (Part Level Submission) Comfi Airways, Inc., a small two-plane passenger airline, has asked for your assistance in some basic analysis of its operations. Both planes seat 10 passengers each, and they fly commuters from Comfi's base airport to the major city in the state, Metropolis. Each month, 40 round-trip flights are made. Shown below is a recent month's activity in the form of a cost-volume-profit income statement. $64,000 Fare revenues (400 passenger flights) Variable costs Fuel Snacks and drinks Landing fees Supplies and forms $21,440 720 1,800 1,000 24,960 39,040 Contribution margirn Fixed costs Depreciation Salaries Advertising Airport hanger fees 2,950 14,470 600 1,500 19,520 Net income $19,520