Quicky find the impact of different rates and terms:
Instructions: To calculate the loan payment amount and the total
interest of any fixed term loan, simply fill in the 3 left-hand cells,
then click on "compute." Remember to use the number of payment months in the first column (7 years is 84, 10 years is 120, 12 years is 144, 15 years is 180, and 20 years is 240).