An investment has an installed cost of $673,658. The cash flows over the four-year life of the investment are projected to be $228,701, $281,182, $219,209, and $190,376.

Requirement 1:If the discount rate is zero, what is the NPV?(Do not round intermediate calculations.)

NPV$

Requirement 2:If the discount rate is infinite, what is the NPV?(Do not round intermediate calculations.Negative amount should be indicated by a minus sign.)

NPV$

Requirement 3:At what discount rate is the NPV just equal to zero?(Do not round intermediate calculations.Round your answer to 2 decimal places (e.g., 32.16).)