A five$-$year project requires an investment of $-294$ and has the following cash flows in years $1$ through $5,$ respectively $($all cash flows in dollars$)$: $188,32,224,86,$ and $120.$ Without actually calculating any IRR, what is the maximum possible value any of the real IRRs could have? Give your answer as a percent with two decimals; e$.$g$.,23\mathrm{.}24($Acceptable error $=0\mathrm{.}5\%)$