Peng Company is considering an investment expected to generate an average net income after taxes of $3,100 for three years. The investment costs $56,100 and has an estimated $8,400 salvage value ir Assume Peng requires a 10% return on its investments. Compute the net present value of this investment. Assume the company uses straight-line depreciation. (PV of \$1. EV of S1, PVA of \$1, and EVA of SI) (Use oppropriote foctor(s) from the tables provided. Negotive amounts should be indicated by a minus sign. Round your present volue factor to 4 decimals.)