A factory has a yield$-$to$-$input $($Y$/$I$)$ ratio of $0\mathrm{.}94$ and the percentage of poor$-$quality products that can be reworked $($R$)$ is $89\mathrm{.}1\%.$ If the percentage of good products produced each day $($G$)$ is doubled but the yield$-$to$-$input ratio remains unchanged, then the percentage of poor$-$quality products that can be reworked must have $\_\_\_\_\_\_\_\_\_\_.$