Marisol took out a fully amortizing $30$ year mortgage with the initial balance of $$5086$ and monthly payments. This mortgage has a fixed interest rate at $4\%.$ What percentage of her first payment is attributable to interest? $($Write the answer as a percent. So if your answer is $2\mathrm{.}5\%,$ it should be written as $2\mathrm{.}5,$ not as $0\mathrm{.}025)$