Sheridan provides shuttle service between 4 hotels near a medical center and an international airport. Sheridan uses two 10- passenger vans to offer 12 round trips per day. A recent month's activity in the form of a cost-volume-profit income statement is as follows. Sales (1.420 passengers) $32,660 Variable costs Fuel $4,024 Tolls and parking 5,088 Maintenance 686 9,798 Contribution margin 22,862 Fixed costs Salaries Depreciation (straight-line) Insurance Net income 13,100 2,000 1,000 16,100 $6,762