Problem:
A borrower made a mortgage loan 7 years ago for $160,000 at 10.25% interest for 30 years. The loan balance is now $151,806.62 and rates for this amount are currently 9.0% for 23 years. Origination fees and closing costs are $4,500 and closing costs are not financed by the lender.
Required:
What is the effective cost of refinancing?
Note: Provide support for your rationale.