Trent took out a loan from a credit union in 2018. At the time he agreed to make payments of $250 per month for a total of 48 months. Now with 12 payments remaining, Trent can refinance into a 12-month loan for payments of $225 per month by paying a closing cost of $190 today. If Trent's opportunity cost of capital is 7.2% APR, should he refinance, and by how much better/worse is the refinance in present value terms?