Gunther earned a $68\mathrm{.}5$ percent return on a stock that he purchased one year ago. The stock is now worth $$13,$ and he received a dividend of $$1$ during the year. How much did Gunther originally pay for the stock?

$$9\mathrm{.}59$

$$8\mathrm{.}22$

$$8\mathrm{.}31$

$$8\mathrm{.}91$