Kuczenski Corporations cost formula for its manufacturing overhead is $45,700 per month plus $53 per machine hour. For the month of March, the company planned for activity of 6,200 machine-hours, but the actual level of activity was 6,150 machine hours. The actual manufacturing overhead for the month was $373,630 a. What is the manufacturing overhead in the planning budget for March b. What is the manufacturing overhead in the flexible budget for March c. The activity variance for manufacturing overhead in March d. The spending variance for manufacturing overhead in March