Port Norris Textiles Corporation began September with a budget for 30,000 hours of production in the Weaving Department. The department has a full capacity of 40,000 hours under normal business conditions. The budgeted overhead at the planned volumes at the beginning of September was as follows: Line Item Description Amount Variable overhead 93,000 Fixed overhead64,000 Total 157,000 The actual factory overhead was158,900 for September. The actual fixed factory overhead was as budgeted. During September, the Weaving Department had standard hours at actual production volume of 31,000 hours. Determine the variable factory overhead controllable variance and the fixed factory overhead volume variance. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. Round your interim computations to the nearest cent, if required. a. Variable factory overhead controllable variance: fill in the blank 1 of 2fill in the blank 2 of 2 b. Fixed factory overhead volume variance: fill in the blank 1 of 2 fill in the blank 2 of 2