Windsor Company has gathered the following information: Variable manufacturing overhead costs $12,150 Fixed manufacturing overhead costs $9.180 Normal production level in labour hours 9,000 Standard labour hours 9,400 During the year, 3,310 units were produced, 10,700 hours were worked, and the actual manufacturing overhead was $20,100. Actual fixed overhead totalled $9,190. Windsor 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, eg 15.25) Fixed predetermined ovehead rate $ per DL hour Variable predetermined ovehead rate $ per DL hour Total predetermined ovehead rate $ per DL hour