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 Cost Formula $16,400 + $0.17 per machine-hour $38,400 + $1.60 per machine-hour $0.70 per machine-hour $94,300 + $1.70 per machine-hour $68,400 Actual Cost in March $ 21,430 $ 62,600 $ 13,100 $ 127,500 $ 70,100 During March, the company worked 17,000 machine-hours and produced 11,000 units. The company had originally planned to work 19,000 machine-hours during March. Required: 1. Calculate the activity variances for March. 2. Calculate the spending variances for March.