A bank estimates that its profit next year is usually distributed with a mean of $0\mathrm{.}8\%$ of assets and standard deviation of $2\%$ of assets. How much equity $($as a percentage of assets $)$ does the company need to be $99\mathrm{.}9\%$ sure that it will have positive equity at the end of the year.$($Use z$-$value rounded to two decimal places$)$