Suppose you have just obtained a 30-year home mortgage in the amount of $196,000 at an APR of 8.

Suppose you have just obtained a 30-year home mortgage in the amount of $196,000 at an APR of 8.2%. By finding the required monthly payment and also the monthly payment that you would need to make in order to pay off the loan in 20 years, determine the amount you would save in interest charges by paying off the loan in 20 years.