If I wanted to use print as a variable name, how do I get the system to decide gee, do I want print as a value for something, or do I want print as a command?
Also, mortgages have a duration (a calculation of the time it takes to get paid back) that is avariable, hypothetical duration that varies with prepayment speeds, so a short duration mortgage portfolio is not protection against a sudden increase in interest rates, because if interest rates rise the duration will rise which hurts the value of the bond.
Make sure you take into account your variable costs to get to a gross profit and then fully allocate all of your fixed costs associated with that account.