Nova Companys total overhead cost at various levels of activity are presented below: Month Machine-Hours Total Overhead Cost April 47,000 $211,050 May 37,000 $182,550 June 57,000 $239,550 July 67,000 $268,050 Assume that the total overhead cost above consists of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 37,000 machine-hour level of activity is: Utilities (variable) $ 59,200 Supervisory salaries (fixed) 63,000 Maintenance (mixed) 60,350 Total overhead cost $ 182,550 Nova Companys management wants to break down the maintenance cost into its variable and fixed cost elements. Required: 1. Estimate how much of the $268,050 of overhead cost in July was maintenance cost. (Hint: To do this, it may be helpful to first determine how much of the $268,050 consisted of utilities and supervisory salaries. Think about the behavior of variable and fixed costs!)