This calculator was designed to help you to take a 'picture' of your current financial condition.
Whereas an income and expense statement shows you your financial picture for a period of time (month, year, etc.), this Net Worth Calculator will show you your financial picture at a single point in time (a specific date). That way, if you compute your Net Worth now, and then again 3 months from now, you will be able to tell whether your financial picture is improving or getting worse.