please use formula.

1. A bank makes a 30 year Fully Amortizing FRM for $1,800,000 at an annual interest rate of 4.875% compounded monthly, with monthly payments. What is the difference between the balance and the market value of the loan after 36 monthly payments if the interest rate rises to 5%?

(Give the absolute value of the difference, so the answer should be a positive number.)

2. A bank makes a 30 year Fully Amortizing FRM for $1,500,000 at an annual interest rate of 5% compounded monthly, with monthly payments. Suppose inflation is 2% per year, compounded monthly. What is the real value of the 120^th payment?