A standard solution of ethanol is used to produce a series of diluted solutions of known concentration in this experiment.

Calculate the concentration of a dilute solution prepared by combining $2\mathrm{.}00$ mL of $0\mathrm{.}100\%$ ethanol by volume standard with $8\mathrm{.}00$ mL deionized water.

Report your answer with the correct number of significant digits.

$----\%$ ethanol