“Multiply your age times your realized pretax annual household income from all sources except inheritances. Divide by ten. This, less any inherited wealth, is what your net worth should be.” ShouldAgeWealthSourceTenIncomeDividesHouseholdInheritanceAnnualsNet WorthInherited Wealth Book:The Millionaire Next Door: The Surprising Secrets of America's Wealthy Source: The Millionaire Next Door: The Surprising Secrets of America's Wealthy