you have a loan of $100,000,6\mathrm{.}88\%$ intrest, APR of $6\mathrm{.}92\%.$ You can pay an extra $25\%$of the minimum monthly payment. So your monthly payments are now $$2,289\mathrm{.}70(3\mathrm{.}9$ year life span$)$ how much will you repay over the life of the loan?