Rodger's Cabinet Manufacturers Uses Flexible Budgets That Are Based on the Following

Rodger's Cabinet Manufacturers uses flexible budgets that are based on the following manufacturing data for the month of July:
Direct materials $8 per unit
Direct labor $5 per unit
Electric power variable $0.30 per unit
Electric power fixed $4,000 per month
Supervisor salaries $25,000 per month
Property taxes on factory $4,000 per month
Straight-line depreciation $2,900 per month
Prepare a flexible budget for Rodger's based on production of 10,000, 15,000, and 20,000 units.