Trinity produces railroad cars. Discuss a project to add cylindrical containers to railcars. Currently, it produces 600 wagons per year at a unit cost of $ 50,000 and a selling price of $ 80,000 per car. The new project would add a cylinder to 200 of the cars it produces and the tank cars would have a margin of $ 45,000. The new investment would generate an additional depreciation of $ 1,400,000. If the tax rate is 30%, determine the marginal annual operating flow.