Thomlin Company forecasts that total overhead for the current year will be $11,976,000 with 192,000 total machine hours. Year to date, the actual overhead is $7,834,000 and the actual machine hours are 99,000 hours. The predetermined overhead rate based on machine hours is Round the factory overhead rate to the nearest dollar before multiplying by the number of hours. Oa. $62 per machine hour Ob. 541 per machine hour Oc. $121 per machine hour Od. $79 per machine hour