Nova Company's total overhead costs at various levels of activity follow: Machine- Total Overhead Month Hours Costs April 72,500 $ 203,000 May June July 105,000 275,000 85,000 95,000 227,000 246,750 Assume that the total overhead costs consist of utilities, supervisory salaries, and maintenance. The breakdown of these costs at the 72,500 machine-hour level of activity is as follows: Utilities (V) Supervisory salaries (F) Maintenance (M) Total overhead costs V variable; F = fixed; M = mixed. $ 48,750 21,500 132,750 $203,000 Nova Company's management wants to break the maintenance cost down into its basic variable and fixed cost elements.