30. A company incurs $1,200,000 of overhead each year in three departments, Processing, Packaging, and Testing. The company performs 800 processing transactions, 200,000 packaging transactions, and 2,000 tests per year in producing 400,000 drums of oil and 600,000 drums of sludge. The following data are available: Department Processing Packaging Testing Estimated use of Driver 800 200,000 2,000 Production information for sludge is as follows: Department Processing Packaging Testing Estimated use of Driver 500 80,000 400 Calculate the amount of overhead assigned to sludge. a) $600,000 b) $552,500 c) $647,500 Cost $500,000 500,000 200,000