In addition to other costs, Fanning Telephone Company planned to incur $454,570 of fixed manufacturing overhead in making 347,000 telephones. Fanning actually produced 354,000 telephones, incurring actual overhead costs of $447,570. Fanning establishes its predetermined overhead rate based on the planned volume of production (expected number of telephones). Required: a. Calculate the predetermined overhead rate. Note: Round your answer to 2 decimal places. b. Determine the fixed cost spending variance and indicate whether it is favorable (F) or unfavorable (U). Note: Select "None" if there is no effect (i.e., zero variance). c. Determine the fixed cost volume variance and indicate whether it is favorable (F) or unfavorable (U). Note: Select "None" if there is no effect (i.e., zero variance). a. Predetermined overhead rate per unit b. Total fixed cost spending variance c. Total fixed cost volume varianceRequired: a. Calculate the predetermined overhead rate. Note: Round your answer to 2 decimal places. b. Determine the fixed cost spending variance and indicate whether it is favorable (F) or unfavorable (U). Note: Select "None" if there is no effect (i.e., zero variance). c. Determine the fixed cost volume variance and indicate whether it is favorable (F) or unfavorable (U). Note: Select "None" if there is no effect (i.e., zero variance). a. Predetermined overhead rate per unit b. Total fixed cost spending variance c. Total fixed cost volume variance hs C TI None