the three cost data groups shown below. High-Low Method Apply the high-low method of cost analysis Volume (applicable to Group A Group B Group C each group) Costs Costs Costs 2,000 $7,800 $3,000 $7,200 12,000 37,800 18,000 7,200 16,000 49,800 24,000 7,200 20,000 61,800 30,000 7,200 What cost behavior patterns are apparent? Express each as a cost formula: Total cost = Fixed costs + (Variable cost x Volume). Group Fixed costs + (Variable cost x Volume) $ 0 x Volume $ +