A special-purpose machine tool set would cost $30,000. The tool set will be financed by a $10,000 bank loan repayable in two equal annual installments at 10% compounded annually. The tool is expected to provide annual (material) savings of $30,000 for two years and has a CCA rate of 100%. The tool will require annual O&M costs in the amount of $5,000. The salvage value at the end of the two years is expected to be $8,000. Assuming a marginal tax rate of 40% and MARR of 15%, what is the net present worth of this project? (half-year rule or not?)