Karl Corp. Karl Corp. manufactures GPS devices and uses a standard cost system. The following information pertains to direct labor for model 209 for the month of June: Actual rate paid $12 per hour Standard rate $10.50 per hour Standard hours allowed for actual production 3,880 hours Labor efficiency variance $735 favorable What were the actual hours Karl's employees worked during June? Richie Company The Richie Company uses a standard costing system in which variable manufacturing overhead is assigned to production on the basis of the number of machine setups. Data for the month of October include the following: Variable manufacturing overhead cost incurred: $42,750 Total variable manufacturing overhead variance: $5,430 favorable Standard machine setups allowed for actual production: 2,920 setups Actual machine setups incurred: 2,850 setups 1) Compute the standard variable overhead rate per machine setup. 2) Compute the rate variance for the overall variable overhead. Indicate whether the variance is favorable (F) or unfavorable (U)