For example, if you pay
$1500 a month for your
mortgage and another $100
a month for an auto loan
and $400 a month for the
rest of your debts, your
monthly debt payments are
$2,000. ($1500 + $100 + $400
= $2,000.) If your gross
monthly income is $6,000,
then your debt-to-income
ratio is 33 percent.