"The advisers factored in an estimated average monthly Social Security benefit for a couple at $2,212 a month with a cost of living adjustment of 2.6 percent per year. They also assumed a rate of return on invested savings of 6.5 percent a year with inflation estimated at 3.5 percent each year. They found that a person who wants a retirement income of $50,000 a year for the rest of his or her life would need a lump sum of about $500,000. For an annual income of $75,000 the person would need about $1 million saved; and savings of $1.5 million for an annual income of $100,000 combined with Social Security."  MORE >>