13. Use the Monthly Mortgage Payment Calculator to determine the difference between the monthly payments and the total cost of payments made on a $325000 mortgage at a rate of 5.5% for twenty years to the same mortgage taken out over 30 years. INTEREST RATE MONTHLY PAYMENT PER THOUSAND DOLLARS 20 years $6.21 6.34 6.48 6.60 6.74 4.25% 4.5% 4.75% 5.0% 5.25% 5.5% 5.75% 6.0% 6.25% 6.5 % 15 years $7.53 7.65 7.78 7.91 8.04 8.18 8.31 8.44 8.58 8.72 8.85 6.89 7.03 30 years $4.93 5.08 5.22 5.37 5.53 5.69 5.84 6.00 6.16 6.33 .49 6.65 6.82 6.99 7.17 7.32 7.46 6.750 8.99 7.0% 7.25% 7.5% 9.13 9.27 7.616 7.75 7.90 8.06