Maintenance expenses of a company are to be analyzed for purposes of constructing a flexible budget. Examination of past records disclosed the following costs and volume measures: Highest Lowest Cost per month $ 81,000 $ 69,000 Machine hours 93,000 69,000 Using the high-low technique, estimate the annual fixed cost for maintenance expenditures: $375,700. $61,500. $290,200. $211,600. $414,000.