Problem $9-18$ NPV and Discount Rates $($LO$1)$

An investment has an installed cost of $$520,800.$ The cash flows over the four$-$year life of the investment are projected to be

$$228,850,$$$245,450,$$$212,110,$ and $$160,820.$

If the discount rate is zero, what is the NPV$?($Omit $ sign in your response.$)$

NPV $

If the discount rate is infinite, what is the NPV$?($Negative answer should be indicated by a minus sign. Omit $ sign in your

response.$)$

NPV $$-520800$

At what discount rate is the NPV just equal to zero? $($Round the final answer to $2$ decimal places.$)$

IRR

$\%$