What is the real $($inflation$-$adjusted$)$ total return for large ordinary shares in $2018$ if the total return for the NZX$50$ in $2018$ was $8\mathrm{.}98\%$ and the rate of inflation was $1\mathrm{.}78\%?$

Write your answer as a $\%$ with $3$ decimal places with no symbol. $($So $3\mathrm{.}42\%$ is entered as $3\mathrm{.}420)$