Thomas Textiles Corporation began November with a budget for 60,000 hours of production in the Weaving Department. The department has a full capacity of 75,000 hours under normal business conditions. The budgeted overhead at the planned volumes at the beginning of November was as follows:

Variable overhead $450,000
Fixed overhead 262,500
Total $712,500

The actual factory overhead was $725,000 for November. The actual fixed factory overhead was as budgeted. During November, the Weaving Department had standard hours at actual production volume of 64,500 hours.
Required:
a. Determine the variable factory overhead controllable variance.
b. Determine the fixed factory overhead volume variance.