Free payoff calculator
Your $600/mo minimum doesn't cover the ~$625 monthly interest. At 24.99% APR, this $30,000 balance won't shrink at minimums. See how much you need to pay — free calculator.
At 24.99% APR, a $30,000 balance accrues approximately $625 in interest per month. At minimum payments of $600/mo, it takes about 30+ years to pay off. Doubling your payment cuts that to roughly 3 years.