The following information relates to manufacturing overhead for the Chapman Company: Standard: Total fixed factory overhead - $450,000 Estimated production - 25,000 units (100% of normal capacity) Overhead rates are based on machine hours Standard hours allowed per unit produced - 2 Fixed overhead rate - $9.00 per machine hour Variable overhead rate - $3,50 per hour Actual Fixed factory overhead - $450,000 Production - 24,000 units Variable overhead - $170,000 Required: a. Compute the volume variance b. Compute the controllable variance Compute the total factory overhead cost variance. E- All work saved