Master Budget Product A. Product B $396,000 264,000 $132,000 66,000 Sales $264,000 Variable cost 154,000 $110,000 88,000 Contribution margin Fixed cost $ 22,000 $66,000 Operating income 120 Selling price 60 On September 1, these operating results for August were reported: Operating Results Product A Product B $198,000 117,000 $ 81,000 88,000 Sales $446,400 309,600 $136,800 66,000 Variable cost Contribution margin Fixed cost $ (7,000) $ 70,800 Operating income Units sold 1,800 7,200 Required: 1. For each product, determine the following variances measured in dollars of contribution margin: Product A Product B a. Flexible-budget variance b. Sales volume variance c. Sales quantity variance d. Sales mix variance