Problem 9-20 Activity and Spending Variances (LO9-1, LO9-2, LO9-3] You have just been hired by FAB Corporation, th e manufacturer of a revolutionary new garage door opening device. The president as asked that you review the company's costing system and "do what you can to help us get better control of our manufacturing that the company has never used a flexible budget, and you suggest that preparing such a budget would be overhead costs." You find an excellent first step in overhead planning and control. After much effort and analysis , you determined the following cost formulas and gathered the following actual cost data for March: Actual Cost in March Cost Formula $16,100 plus $0.17 perS machine-hour Utilities 21,300 $38, 600 plus $2.00 per machine-hour Maintenance 72,400 $0.60 per machine-hour11,800 Supplies Indirect labor Depreciation $67, 600 $94,100 plus $1.60 per machine-hour 127,000 69, 300