The following data relate to factory overhead cost for the production of 4,000 computers: Actual: Variable factory overhead Fixed factory overhead Standard: 4,000 hrs. at $35.00 $108,600 42,000 140,000 If productive capacity of 100% was 6,000 hours and the total factory overhead cost budgeted at the level of 4,000 standard hours was $154,000, determine the variable factory overhead Controllable Variance, fixed factory overhead volume variance, and total factory overhead cost variance. The fixed factory overhead rate was $7.00 per hour. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number.