An investment has an installed cost of $563,382. The cash flows over the four-year life of the investment are projected to be $192,584, $236,318, $184,674, and $152,313.

Requirement 1:

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

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.)

Requirement 3:

At what discount rate is the NPV just equal to zero? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).)