Factory Overhead Cost Variances The following data relate to factory overhead cost for the production of 6,000 computers: If productive capacity of 100% was 10,000 hours and the total factory overhead cost budgeted at the level of 6,000 standard hours was $129,000 determine the variable factory overhead Controllable Variance, fixed factory overhead volume variance, and total factory overhead cost variance. The fixed factory overhead rate was $3.75 per hour. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number