You hear on the news that the S\&P 500 was down 2.4% today relative to the risk-free rate (the market's excess return was 2.4% ). You are thinking about your portfolio and your investments in Zynga and Proctor and Gamble. a. If Zynga's beta is 1.4 , what is your best guess as to Zynga's excess return today? b. If Proctor and Gamble's beta is 0.5 , what is your best guess as to P\&G's excess return today? a. If Zynga's beta is 1.4 , what is your best guess as to Zynga's excess return today? Zynga's excess return today is \%. (Round to one decimal place.)