Jumbuck Explora!on has a current stock price of $$2$ and is expected to sell for $$3\mathrm{.}15$ in one year's $!$me$,$ immediately a$"$er it pays a dividend of $$0\mathrm{.}3.$ Jumbuck Explora!on's equity cost of capital is $\_\_\_\%.($round your answer to two decimal places$)$

$72\mathrm{.}5$