Perez Company is considering investing in two new vans that are expected to generate combined cash inflows of $25,500 per year. The vans combined purchase price is $97,500. The expected life and salvage value of each are six years and $21,100, respectively. Perez has an average cost of capital of 12 percent. (PV of $1 and PVA of $1) (Use appropriate factor(s) from the tables provided.) Required Calculate the net present value of the investment opportunity. (Negative amount should be indicated by a minus sign. Round your intermediate calculations and final answer to 2 decimal places.)