The Capital Asset Pricing Model $($CAPM$)$ is a financial model that assumes returns on a portfolio are normally distributed. Suppose a portfolio has an average annual return of $15\mathrm{.}2\%($i$.$e$.$ an average gain of $15\mathrm{.}2\%)$ with a standard deviation of $32\mathrm{.}5\%.$ A return of $0\%$ means the value of the portfolio doesn't change, a negative return means that the portfolio loses money, and a positive return means that the portfolio gains money. $($Keep one decimal place.$)$

a$)$ What percent of years does this portfolio lose money, i$.$e$.$ have a return less than $0\%?$

$\%$

b$)$ What is the cutoff for the highest $15\%$ of annual returns with this portfolio?

$\%$ return