Peng Company is considering an investment expected to generate an average net income after taxes of $1,950 for three years. The investment costs $45,000 and has an estimated $6,000 salvage value. Assume Peng requires a 15% return on its investments. Compute the net present value of this investment. (FV of $1, PV of $1, FVA of $1 and PVA of $1) (Use appropriate factor(s) from the tables provided. Negative amounts should be indicated by a minus sign.)