The common stock and debt of Northern Sludge are valued at $$75$ million and $$25$ million, respectively. Investors currently require a $16\mathrm{.}1\%$ return on the common stock and an $7\mathrm{.}6\%$ return on the debt. If Northern Sludge issues an additional $$12$ million of common stock and uses this money to retire debt, what happens to the expected return on the stock? Assume that the change in capital structure d oes not affect the interest rate on Northern$$s debt and that there are no taxes. Note: Do not round intermediate calculations. Enter your answer as a percent rounded to two decimal places.