A stock has monthly returns of $1\mathrm{.}89\%,0\mathrm{.}56\%,-0\mathrm{.}42\%,$ and $2\mathrm{.}09\%.$ What is the stock$$s geometric average return? Please write your answer as a percentage $($e$.$g$.\mathrm{.}1234$ should be written as $12\mathrm{.}34).$