Calculate overhead variances. E12.30 (LO 3) Rondell Company uses a standard cost system. Indirect costs were budgeted at $200,000 plus $15 per direct labour hour. The overhead rate is based on 10,000 hours. Actual results were: Standard direct labour hours allowed 9,000 Actual direct labour hours 10,000 Fixed overhead $190,000 Variable overhead $185,000 Instructions a. Calculate the fixed overhead production volume variance. b. Calculate the variable overhead spending variance. c. Calculate the variable overhead efficiency variance. d. Calculate the over- or underapplied overhead