Problem 9.18 NPV and Discount Rates (LO1) An invertment has on installed cost of $522,800. The cash fiows over the fouryear life of the investment are projected to be $226850,$243,450,$210,110 and $158,820 If the discount rate is zero, what is the NPV? (Omit 5 sign in your response.) NPV $ If the discount rose is infinite, what is the NPV? (Negotive answer should be indicated by a minus sign. Omit $ sign in your response.) NPV $ At what dircount rote is the NPV just equal to zeto? (Round the final answer to 2 decimal places.) IRR