9 Out Saved Help Save & Exit Dubberly Corporation's cost formula for its manufacturing overhead is $30,800 per month plus $62 per machine-hour. For the month of March, the company planned for activity of 7,940 machine-hours, but the actual level of activity was 7,900 machine-hours. The actual manufacturing overhead for the month was $545,730. The activity variance for manufacturing overhead in March would be closest to: Multiple Choice O $22.650 U O $22650 F O $2.480 F O $2480 U Mc