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a.
Rate Quantity
Revenue credit hours
Variable costs:
Regis., records, and marketing students
Instructional costs credit hours
Total variable costs
Contribution margin
Depreciation on classrooms and equipment
Income from operations
Planned contribution margin
Effect of change in revenue:
Total effect of change in revenue
Effect of changes in registration, records, and marketing costs:
Variable cost quantity factor3
Total effect of changes in regis., records, and marketing
Effect of changes in instructional costs:
Variable cost quantity factor5
Total effect of changes in variable cost of goods sold
Actual contribution margin
1Difference in credit hours
Planned tuition per credit hour
Revenue quantity factor
2Difference in price
Unit price factor
3Difference in number of students
Planned reg., records, and marketing per student
Variable cost quantity factor
4Difference in reg., records, and mkting. per student
5Difference in credit hours
Planned instructional cost per hour
Variable cost quantity factor
6Difference in instructional costs per hour
Variable cost quantity factor
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Contribution Margin Analysis
Variable Costing Income Statement