1. Suppose that 7 years ago you bought a home for $450,000, paying 25% as a down payment, and financing the rest at 3.6% interest for 30 years. How much money did you pay as your down payment?

2. How much money was your existing mortgage (loan) for?

3. What is your current monthly payment on your existing mortgage? Note: Carry at least 4 decimal places during calculations, but round your final answer to the nearest cent.

4. How much total interest will you pay over the life of the existing loan?