You have just been hired by FAB Corporation, the manufacturer of a revolutionary new garage door opening device. The president ha 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: Utilities Maintenance Supplies Indirect labor Depreciation Formula $16,500 $0.12 per machine-hour $39,000$2.00 per machine-hour 0.90 per machine-hour $94,400$1.40 per machine-hour $67,900 Actual Cost March 20,700 72,800 17,800 123,300 69,600 During March, the company worked 18.000 machine-hours and produced 12,000 units. The company had originally planned to work 20,000 machine-hours during March Required: Calculate the activity variances for March 2. Calculate the spending variances for March