Suppose Wacken, Limited just issued a dividend of $$2\mathrm{.}47$ per share on its common stock. The company paid dividends of $$1\mathrm{.}97,$ $$2\mathrm{.}04,$ $$2\mathrm{.}21,$ and $$2\mathrm{.}31$ per share in the last four years. If the stock currently sells for $$66,$ what is your best estimate of the company$$s cost of equity capital using arithmetic and geometric growth rates?

Note: Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$