39. Fixed Overhead Variance Analysis. (This problem is a continuation of the previous problem but can be worked independently.) Prefab Pools Company produces prefabricated in-ground swimming pools and applies fixed manufacturing overhead costs to products based on direct labor hours. Information for the month of April appears as follows. Prefab Pools expected to produce and sell 600 units for the month. image Required: Calculate the fixed overhead spending variance and production volume variance using the format shown in Figure 413 Fixed Manufacturing Overhead Variance Analysis for Jerrys Ice Cream. Clearly label each variance as favorable or unfavorable. Company management has asked you to investigate the cause of the fixed overhead spending variance calculated in requirement a. Provide one possible explanation for this variance.