Mark borrows $$15,000$ to buy a new car. His loan has an interest rate of $6\mathrm{.}5\%,$ compounded monthly, and his monthly payment is $$293\mathrm{.}49.$ If instead his loan had an interest rate of $8\%,$ how much more would he have paid in interest by the time he finished repaying his loan in $60$ months?

Group of answer choices

$$3,249\mathrm{.}00$

$$225\mathrm{.}00$

$$639\mathrm{.}60$

$$304\mathrm{.}15$