The following data concern an investment for PT TAM project: Year Cash inflows Cash outflows 1 480,000 160,000 2 640,000 240,000 3 800,000 320,000 4 960,000 400,000 5 1,120,000 480,000 6 1,280,000 560,000 7 1,120,000 640,000 8 960,000 720,000 Initial investment of this project is $ 1,152,000 without salvage value in 8 years. Required: Compute the project's net present value if required rate of return is 20%