The Thorin Company forecasts that total overhead for the current year will be $11.059.000 with 158,000 total machine hours. Year to date, the actual overhead is 250.000 and the actual machine hours are 98,000 hours. If the Thon Company uses a predetermined overhead rate based on machine hours for applying overhead, as of this point in time (year to date, the overhead is Round the factory overhead rate to the nearest dollar before multiplying by the number of hours Oa. $508,000 underapplied Ob. 5660,400 underapplied Oc. $500.000 Overcplied Od 5660,400 verplied