A project has the following cash flows: $),$ and $).$ The required rate of return is $20\%$ and the NPV of this project is $$9\mathrm{.}72.$ Suppose the required rate of return changes from $20\%$ to $8\mathrm{.}5\%,$ what would be the percentage point change of the IRR of the project?

$[$Answer: Percentage number. If the answer is $12\mathrm{.}34\%$ write either $12\mathrm{.}34($number with $2$ decimals$)$ or $0\mathrm{.}1234($number with $4$ decimals$).$ Do not include $\text{'}\%\text{'}.]$

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