You are given the following information concerning three portfolios, the market portfolio, and the risk-free asset: Portfolio RP P P X 13.0 % 30 % 1.30 Y 12.0 25 1.10 Z 7.0 15 0.75 Market 10.1 20 1.00 Risk-free 5.0 0 0 Assume that the correlation of returns on Portfolio Y to returns on the market is 0.86. What is the percentage of Portfolio Ys return that is driven by the market? (Enter your answer in percentage. Round your answer to 2 decimal places.)