The cost formula for the maintenance department of Rambo Limited is $19,500 per month plus $7.80 per machine hour used by the production department. Required: a. Calculate the maintenance cost that would be budgeted for a month in which 6,900 machine hours are planned to be used. b. Prepare an appropriate performance report for the maintenance department assuming that 7,080 machine hours would be used in the month of May and that the total actual maintenance cost incurred in May was $68,970. Complete this question by entering your answers in the tabs below. Calculate the maintenance cost that would be budgeted for a month in which 6,900 machine hours are planned to be used