A firm has a debt-to-equity ratio of 0.24, debt with a beta of _D = 0, a return on equity of r_E = 16.6% per year, and a market value of $2.2 million. What return do shareholders require if you take the firm through a restructuring process that ends up with a debt-to-equity ratio 0.63? Assume an idealized world with taxes and with well functioning markets in which the risk-free rate is 3%, and the expected return on the market is 10%. The tax rate is 21%. Enter your answer in percentage with 2 decimals (e.g. 12.34% = 12.34)