please help me solve this

Campbell Inc. manufactures custom made cabinets and applies manufacturing overhead on the basis of machine hours. At the start of the year, Doreen estimated that total manufacturing overhead would be $600,000 and total machine hours would be 60,000. At the end of the year, actual overhead was $660 000 and actual machine hours was 70,000 hours. How much manufacturing overhead was applied to all jobs during the year? Select one: O $600,000 O not enough information to determine this $700,000 O $660,000