Suppose you bought your house 8 years ago, with a $185,000, 6.2% APR, 30 year loan. Today, (8 years later), you came to know that the long term interest rate has dropped to 5.8% so you shopped around to see whether it is worth refinancing your mortgage . You find a bank which is offering 5.8 % APR on a 20 year mortgage and the new loan comes with a 2.5 point origination fee. What is the return you would get if you refinanced ?