Crosshill Company's total overhead costs at various levels of activity are presented below: 2 Month April :31:16 May June July Machine-Hours 70,000 60,000 80,000 90,000 Total Overhead Cost $214,000 $181,800 $238,000 $246,000 Assume that the overhead cost above consists of utilities, supervisory salaries, and maintenance." 60,000-machine-hour level of activity in May is as follows: Utilities (variable) Supervisory salaries (fixed) Maintenance (mixed) Total overhead cost $ 51,000 21,000 109,800 $181,800 bio-and-fixod.cost.elements 00:31:02 The company wants to break down the maintenance cost into its variable and fixed cost elements. Required: 1. Estimate how much of the $246,000 of overhead cost in July was maintenance cost. (Hint: To do this, first determine how much of the $246,000 consisted of utilities and supervisory salaries. Think about the behaviour of variable and fixed costs within the relevant range.) (Round the "Variable cost per unit" to 2 decimal places.) Maintenance cost in July $ 148,500 2. Using the high-low method, estimate a cost formula for maintenance. (Round the "Variable cost per unit" to 2 decimal places.) High activity level Low activity level Change Variable cost element Fixed cost element Machine- Hours Maintenance Cost 0 $ per MH 32 3. Express the company's total overhead cost in the form Y-a bX (Round the "Variable cost per unit" to 2 decimal places) 12 points Utilities cost Supervisory salaries cost 00:30:47 Maintanance cost Total overhead cost Variable Cost pur Machine-Hour Fixed Cost $ 0.00 $ 0 4. What total overhead cost would you expect to be incurred at an activity level of 75,000 machine-hours? (Round the "Variable cost. per unit to 2 decimal places.) Total everhead cost