A firm is planning a new oil and gas project that is estimated to yield cash flows of $-$$$55$ million per year in Year $1$ through Year $2,$ $$60$ million per year in Years $3$ through $5,$ and $$88$ million in Years $6$ through $8,$ and $$128$ million in Years $9$ through $12.$ This investment will cost the company $$300$ million today $($initial outlay$).$ We assume that the firm's cost of capital is $8\mathrm{.}5\%.$Question Compute payback period, net present value $($NPV$),$ profitability index $($PI$),$ internal rate of return $($IRR$),$ and modified internal rate of return $($MIRR$).$