Currently, the best bid in the LOB is $$9\mathrm{.}33$ with a bid size of $2,$ the next best bid is $$9\mathrm{.}32$ with a bid size $1,$ the best ask is $$9\mathrm{.}37$ with a bid size $3,$ and the next best ask is $$9\mathrm{.}37$ with a bid size $1.$ What is the quoted spread as a percentage of the current price? Keep $3$ decimal places. For example, if the answer is $2\mathrm{.}4567\%,$ enter $\text{'}2\mathrm{.}457\text{'}.$