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 aathered the following actual cost data for March. 17.000 moisu, me company worked 15.000 machine-hours and produced 9.000 units. The company had onginally planned to work Required: 1. Calculate the activity variances for March. 2 Calculate the spending vatiances for March Calculate the activity variances for March. (Indicate the effect of each v unfavorable, and "None" for no effect (i.e., zero variance). Input all amo Calculate the spending variances for March. (Indicate the effect of unfavorable, and "None" for no effect (i.e., zero variance). Input a