Question 20 Mercuri Company has gathered the following information: Variable manufacturing overhead costs Fixed manufacturing overhead costs Normal production level in labour hours Standard labour hours $13,140 $10,170 9,000 9,400 During the year, 3,480 units were produced, 10,800 hours were worked, and the actual manufacturing overhead was $21,200. Actual fixed overhead totalled $10,260. Mercuri applies overhead based on direct labour hours. Calculate the total, fixed, and variable predetermined overhead rates. (Round answers to 2 decimal places, e.g. 15.25.) Fixed predetermined ovehead ratet per DL hour Variable predetermined ovehead rate per DL hour Total predetermined ovehead ratet per DL hour Calculate the fixed manufacturing overhead volume variance. Fixed overhead volume variance