The master budget of Waterway Industries shows that the planned activity level for next year is expected to be 50000 machine hours. At this level of activity, the following manufacturing overhead costs are expected: Indirect labor Machine supplies Indirect materials Depreciation on factory building Total manufacturing overhead $820000 280000 310000 250000 $1660000 A flexible budget for a level of activity of 60000 machine hours would show total manufacturing overhead costs of $1992000 $1742000. $1942000 $1660000