The actual and planned data for Underwater University for the Fall term were as follows: Actual Planned Enrollment 4,500 4,125 Tuition per credit hour $120 $135 Credit hours 60,450 43,200 Registration, records, and marketing costs per enrolled student $275 $275 Instructional costs per credit hour $64 $60 Depreciation on classrooms and equipment $825,600 $825,600 Registration, records, and marketing costs vary by the number of enrolled students, while instructional costs vary by the number of credit hours. Depreciation is a fixed cost. Prepare a variable costing income statement showing the contribution margin and operating income for the Fall term. Underwater University Variable Costing Income Statement For the Fall Term Revenue $ Variable costs: Registration, records, and marketing costs $ Instructional costs Total variable costs $ Contribution margin $ Depreciation on classrooms and equipment Operating income $