Problem 9-18 (Algo) Activity and Spending Variances (LO9-1, LO9-2, LO9-3) You have just been hired by FAB Corporation, the manufacturer of a revolutionary new garage door opening device. The president has asked that you review the company's costing system and do what you can to help us get better control of our manufacturing overhead costs." You find that the company has never used a flexible budget and you suggest that preparing such a budget would be 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 Cost Formula March Utilities 516,200 + $0.12 per machine-hour $ 19,920 Maintenance $38,900 + 51.50 per machine-hour $ 56,700 Supplies $0.80 per machine-hour $ 12,600 Indirect labor $94,380 + $1.30 per machine-hour $116,000 Depreciation $68,000 $ 69, 700 During March, the company worked 14,000 machine-hours and produced 8,000 units. The company had originally planned to work 16,000 machine-hours during March Required: 1. Calculate the activity variances for March 2. Calculate the spending variances for March