The Switzers are nearing the end of the first five-year term of a $100,000 mortgage loan with

Question:

The Switzers are nearing the end of the first five-year term of a $100,000 mortgage loan with a 25-year amortization. The interest rate has been 6.5% compounded semiannually for the initial term. How much will their monthly payments increase if the interest rate upon renewal is 7.5% compounded semiannually?