Quantitative Problem: You are holding a portfolio with the following investments and betas: Stock Dollar investment Beta A $300,000 1.30 B 200,000 1.60 C 400,000 0.65 D 100,000 -0.30 Total investment $1,000,000 The market's required return is 10% and the risk-free rate is 4%. What is the portfolio's required return? Do not round intermediate calculations. Round your answer to three decimal places. %