how to get monthly savings? l need the process on excel. The answer is wrong on this pic.

Suppose you purchased a house 6 years ago and took out a mortgage for $425,000 with a 6.8% interest rate. The mortgage is a 30 year mortgage with monthly payments. Today you can refinance the loan at a 6.3% interest rate for a fee of $6,000. Assume that you would borrow just enough to repay the old loan, and you woud pay the fee out of pocket. Periods Paid Fee Annual Rate Life (In Years) Loan Amount Monthly Payments 6.8% 30 Y 425,000.00 2,770.68 6.3% 30 392,895.29 2,431.91 Initial Loan Refinancing 72 0 6,000.00 If you refinance at the new rate, how much will you save per month? Monthly Savings 97 564.93