Need help Calculating this not sure how to do it.

5. The 15-Year Mortgage Repayment: The interest rate for mortgages is ideal to refinance at 3.25% for 15 years presuming they are going to stay in the home. Monthly payment: Monthly savings/costs: Explanations: Debt portfolio Balance Remaining term Housing PMT Interest rate Market rate Impact of payoff or refinance Your recommendations: Recommendation Cost Impact on annual cash flow The current value of the residence is $550,000. The balance of the 30-year mortgage at 5.5% is $260,514. The land value is $150,000. The monthly payment is $1,703.37 and they have owned it for 8 years. They will not qualify for refinancing until Mr. Young has been employed for 12 months. 5. The 15-Year Mortgage Repayment: The interest rate for mortgages is ideal to refinance at 3.25% for 15 years presuming they are going to stay in the home. Monthly payment: Monthly savings/costs: Explanations: Debt portfolio Balance Remaining term Housing PMT Interest rate Market rate Impact of payoff or refinance Your recommendations: Recommendation Cost Impact on annual cash flow The current value of the residence is $550,000. The balance of the 30-year mortgage at 5.5% is $260,514. The land value is $150,000. The monthly payment is $1,703.37 and they have owned it for 8 years. They will not qualify for refinancing until Mr. Young has been employed for 12 months