Tou have just been hired by Luders Corporation, the manufacturer of a revolutionory new garage door opening device. The president fias 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 excelient firs step in overhead planning and control. Aher much effort aif analysis, you determined the following cost formulas and gathered the following actual cost data for March: During March, the company worked 15.000 machine-hours and produced 9.000 units. The company had originalily planined to wark 17,000 machine-hours during March. Required: 1 Caiculate the activity variances for March. 2. Calculate the spending variences for March