An investment has an installed cost of $$521,800.$ The cash flows over the four$-$year life of the investment are projected to be $$227,850,$ $$244,450,$ $$211,110,$ and $$159,820.$

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 $

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

IRR

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