Kodiak Company provides the following data developed for its master budget: Sales price........ $11.00 per unit Costs Direct materials ......... $3.00 per unit Direct labor...... $4.75 per unit Variable overhead. $0.50 per unit Factory depreciation ....... $12,000 per month Supervision...... $13,000 per month Selling expense.. $0.25 per unit Administrative cost .............. $9,000 per month Required: Prepare flexible budgets for sales of 18,000, 20,000, 22,000, and 24,000 units. Use the contribution margin format