Dave Ramsey recommends saving 15% of gross income monthly into retirement accounts like 401(k)s. Starting in your 40s or 50s may require saving more due to less time for growth. The 4% withdrawal rule suggests multiplying your target retirement income by 25. Answering three quick questions may allow for early retirement.

Read more at Yahoo Finance: Dave Ramsey Says to Save 15% of Your Income for Retirement. Is That Enough?