Title: 80 Percent Rule for Retirement
Article Snip: "...The “80% Rule” is a good guideline for those a long way from retiring who want to, at a minimum, retain the standard of living they had before retirement. Many financial planners suggest that 80% of your pre-retirement income will give you a retirement standard of living that is substantially similar to your pre-retirement standard of living. This is based on three assumptions: First, you will not be paying payroll taxes (Social Security and Medicare) or making pension contributions (CSRS or FERS). For most federal employees, these mandatory taxes and contributions take 8.45% ..."
Reference: www.fedweek.com