What Is the After-Tax Net Present Value of a Project

What is the after-tax net present value of a project costing $600,000 that Plud Corporation can invest in, if the project has the following estimated revenues and expenses?
$$\begin{array} { r l r } & \text { Initial cost } & \$ 600,000 \\\text { Year 1 } & \text { Revenue } & 2,000,000 \\ & \text { Expenses } & 1,450,000 \\\text { Year 2 }& \text { Revenue } & 1,800,000 \\& \text { Expenses } & 1,250,000\end{array}$$
Plud uses an 8 percent discount rate for evaluation and expects a 34 percent marginal tax rate in the relevant years.