RTI Company's master budget calls for production and sale of 19.900 units for $113,430, variable costs of $57710, and fixed costs of $18,900. During the most recent period, the company incurred $33,900 of variable costs to produce and sell 18.900 units for $86,900 During this same period, the company earned $26,900 of operating Income. Required: 1. Determine the following for RTI Company: (Do not round intermediate calculations. Round your answers to the nearest whole dollar.) a. Flexible budget operating income. b. Flexible budget varlance in terms of contribution margin. Was this variance favorable (1) or unfavorable (U)? c. Flexible budget varlance, in terms of operating income. Was this variance favorable (F) or unfavorable (U? d. Sales volume variance, in terms of contribution margin. Was this variance favorable (F) or unfavorable (U)? e. Sales volume variance. In terms of operating Income. Was this variance favorable (F) or unfavorable (U)? a Flexible-budget operating income Flexible-budget variance Flexible budget varanco d Sales volume variance Sales volume variance