Answer:
Cabinaire Inc. 
 Assembly Department Budget 
Month Ending March 31 (assumed data) 
 
Units of production 10,000 13,000 15,000 
 Variable cost: 
Direct labor $ 50,000 $ 65,000 $ 75,000 
 Total variable cost $ 50,000 $ 65,000 $ 75,000 
 Fixed cost: 
Supervisor salaries $ 144,000 $ 144,000 $ 144,000 
 Depreciation $ 33,000 $ 33,000 $ 33,000 
 Total fixed cost $ 177,000 $ 177,000 $ 177,000 
 Total department costs $ 227,000 $ 242,000 $ 252,000 
 
Step-by-step explanation:
Direct Labor 
10,000 Units = (15÷60) × 20 × 10,000 = $ 50,000 
 13,000 Units = (15÷60) × 20 × 13,000 = $ 65,000 
 15,000 Units = (15÷60) × 20 × 15,000 = $ 75,000