Month Machine-Hours Total Overhead Cost March scow 5198,600 April 40,000 5174,400 May 60.000 5222,800 June 70,000 $247,000 Assume that the overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 40,000 machine-hour level of activity is as follows: Utilities (variable) $ 48,000 Supervisory salaries (fixed) 65,000 Maintenance (mixed) 61,400 Total overhead cost $ 174,400 The company wants to break down the maintenance cost into its variable and fixed cost elements. Required: 1. Estimate how much of the $247,000 of overhead cost in June was maintenance cost. (Hint: To do this, it may be helpful to first determine how much of the S247,000 consisted of utilities and supervisory salaries. Think about the behavior of variable and fixed costs within the relevant range.) (Do not round intermediate calculations.) Maintenance cost in June $ 2. Using the high-low method, estimate a cost formula for maintenance. (Round the Variable cost per unit to 2 decimal places.)