Firm ABC is considering investing in a project to reduce costs by $45000 annually. The operating costs will also increase by $23000 each year from the present level. The equipment costs $79000, had a 4 year life (will be depreciated as a 3 year MACRS asset; 33% for the first year, 45% for the second year, and 15% for the third year.) requires $2,000 initial investment in networking capital, has a salvage value of $20,057. The required rate of return is 12%. Tax rate is 21%. What is the NPV and IRR? You can use excel.