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Your portfolio consists of 100 shares of CSH and 30 shares of EJH, which you just bought at $18.83 and $30.39 per share, respectively. a. What fraction of your portfolio is invested in CSH? in EJH? b. If CSH increases to $20.24 and EJH decreases to $28.76, 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.) The fraction invested in EJH is \%. (Round to two decimal places.) b. 1 CSH increases to $20.24 and EJH decreases to $28.76, what is the retum on your portfolio? The return on the portfolio is \%. (Round to two decimal places.)