Your portfolio consists of $125$ shares of $CSH$ and $50$ shares of EJH, which you just bought at $$20$ and $$31$ per share, respectively.

a$.$ What fraction of your portfolio is invested in CSH$?$ In EJH?

b$.$ If CSH increases to $$24$ and EJH decreases to $$29,$ what is the return on your portfolio?

a$.$ What fraction of your portfolio is invested in CSH$?$ In EJH?

The fraction invested in $CSH$ is $\%.($Round to one decimal place.$)$