You took out a loan for $$500$ today. The loan will need to be repaid, with interest, exactly one year from today. If the loan contract requires you to pay $$580$ in one year, what is the interest rate being charged on the loan? LO$4$

$15\mathrm{.}6\%$

$15\mathrm{.}0\%$

$16\mathrm{.}0\%$

$14\mathrm{.}8\%$