ippose that your existing portfolio has a beta of 0.8. There is a risker portfolio available that you could add to your existing portfolio. The riskier portfas a seta of 1.6. What portion of the existing portfolio and what portion of the riskier portfolio do you need to have a new portfolio with a beta of 1 ? The portion of the existing portfolio would need to be % and the portion of the risker portfolio would need to be %. Round your answers to the nearest two decimal places