Consider a portfolio of 400 shares of Pepsi (PEP), 500 shares of WalMart (WMT), 300 shares of Apple (AAPL). On June 1, the prices of these stocks were $102, $71, and $98 respectively. What are the weights of the stocks in the portfolio on June 1 (out 2 decimals)? (b) the three stocks above had a return of 1.2%, 2.1% and -2.2% for the month of June. What is the return on the portfolio in June? (c) What are the new weights of the stocks in the portfolio on June 30 (out 2 decimals)?