$($Constant growth model$)$The current year$$s dividend $($D$0)$ for a share of common stock is $$2$ and the current price $($P$0)$ of the stock is $$30.$ Dividends are expected to grow at $3\mathrm{.}2\%$ forever. The rate of return for this stock is $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\%$