Exercise 8-17A (Algo) Determining and interpreting fixed cost variances LO 8-4, 8-5, 8-6 Thornton Company established a predetermined fixed overhead cost rate of $23 per unit of product. The company planned to make 6,700 units of product but actually produced only 6,300 units. Actual fixed overhead costs were $162,200. Required a. Determine the fixed cost spending variance and indicate whether it is favorable (F) or unfavorable (U). b. Determine the fixed cost volume variance and indicate whether it is favorable (F) or unfavorable (U). (For all requirements, Select "None" if there is no effect (i.e., zero variance).) a. Total spending variance b. Total volume variance