Predict the level of maintenance costs that will be incurred when 287 hours are worked. Required: compute the maintenance cost in the small "Answer box". Show the calculation details/ formula in the "Give your reasons box'. Answer: Give your reasons Predict the level of maintenance costs that will be incurred when 287 hours are worked. Required: compute the maintenance cost in the small "Answer box". Show the calculation details/ formula in the "Give your reasons box'. Answer: Give your reasons