A consulting firm has asked you to analyze another project under consideration. It has an installed cost (at time period zero) of $575,000. The after-tax cash flows over the four-year life of the project are as follows: Year 1: $158,679, Year 2: $264,331, Year 3: $285,159 Year 4: $ 82,308. At what discount rate is the NPV equal to zero? Multiple Choice 14.77% 10.85% a O 13.56% O 15.21%