Your portfolio consists of 100 shares of CSH and 50 shares of EJH, which you just bought at $20 and $30 per share, respectively. a. What fraction of your portfolio is invested in CSH ? In EJH ? b. If CSH increases to $23 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.) The fraction invested in EJH is %. (Round to one decimal place.) b. If CSH increases to $23 and EJH decreases to $29, what is the return on your portfolio? The return on the portfolio is %. (Round to one decimal place.)