Your portfolio consists of 120 shares of CSH and 45 shares of EJH, which you just bought at $21.94 and $30.89 per share, respectively. a. What fraction of your portfolio is invested in CSH ? In EJH? b. If CSH increases to $23.55 and EJH decreases to $28.20, 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 two decimal places.)