cnbc$.$com reported mortgage application increase $9\mathrm{.}9\%$ due to a decrease in the rate on $30$ year fixed rate mortgage Josie Soneros wanted to purchase a vacation home for $245,000$ with $20\%$ down calculate is monthly payment for a $30$ year mortgage at a $5\mathrm{.}5$ calculated total interest using table $15$ won the monthly payment and total interest