Sheridan Company has gathered the following information: $12,060 Variable manufacturing overhead costs Fixed manufacturing overhead costs Normal production level in labour hours $9.090 9.000 Standard labour hours 9,300 During the year, 3,000 units were produced, 10,500 hours were worked, and the actual manufacturing overhead was $20,000. Actua fixed overhead totalled $9,100. Sheridan applies overhead based on direct labour hours. (a) Calculate the total, fixed, and variable predetermined overhead rates. (Round calculations and final answer to 2 decimal places, c.8. 15.25.) Fixed predetermined ovehead rate per DL hour Variable predetermined ovehead rates per DL hour Total predetermined ovehead rate $ per DL hour Calculate the fixed overhead spending variance. Fixed overhead spending variance $ Calculate the variable overhead price variance. Variable overhead price variance Calculate the variable overhead quantity variance. Variable overhead quantity variance Calculate total manufacturing overhead variance. Total overhead variance