Monthly payment total interest cnbc$.$com report mortgage application increased $9\mathrm{.}9$ due to decrease in the rate on $30$ year fixed rate mortgage Joel wanted to purchase a vacation home for $245,000$ with the $20\%$ down calculate his monthly payment for $30$ year mortgage at $5\mathrm{.}5$ calculate total interest using table $15$ one which is $5\mathrm{.}67789$