Go back to the Standard Repayment plan in #1 above. Now pay an extra $100 per month (this gets put toward the principal),.
Print out the amortization schedule and on the back of the schedule answer these questions:
1.
Write down the facts of the loan: loan amount, interest rate, extra monthly payment, length of the loan
2.
What is the total principal, interest paid?
3.
What is the last monthly payment?
4
How many payments is this loan with the additional principal?
5
How much faster was this loan than the original in #1?
6.
How much money was saved by paying $100 extra toward principal each month?
7.
What is the point?