Blue Mechanical Ltd$.\text{'}$s preferred shares have a par value of $$50,$ a dividend rate of $9\mathrm{.}0$ percent, and trade at a price of $$60.$ Kingbird Inc.$\text{'}$s preferred shares have a par value of $$60,$ have a dividend rate of $5\mathrm{.}6$ percent, and trade at a price of $$40.$

Which company's preferred stock is riskier? $($Round answers to $2$ decimal places, e$.$g$.5\mathrm{.}17\%.)$