Given the following attributes of an investment project with a five-year life and an after-tax discount rate of 7%, calculate the net present value (NPV) and the payback period of the project investment outlay, year 0. $5,440; after-tax cash inflows, year 1, $820; year 2, $920; year 3, $1,700; year 4, $2,000; and year 5 $3,400. (Use the built-in function of Excel to estimate the NPV of this project.) (Negative amounts should be entered with a minus sign. Round your answers to the nearest whole dollar amount.) Payback penod Years After-taxCumulative Cash Flows Cash Flows Year 2 4