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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: 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. Complete this question by entering your answers in the tabs below. Calculate the activity varlances for March. (Indicate the effect of each varlance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (I.e., zero varlance). Input all amounts as positive values.) Complete this question by entering your answers in the tabs below. Calculate the spending varlances for March. (Indicate the effect of each varlance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (I.e., zero varlance). Input all amounts as positive values.)