I think it is impossible to read guidleines, and think it may apply. As stated above, too many variables- income during working years, savings, children, mortgage etc.
Though we are still 17 months out, we tracked expenses for years with Quicken, and determined what we wanted to live on based on history. Admittedly, we have been good savers, and we have tweaked the plan. But we have been living (spending) now comfortably only what we expect our retirement expenses to be after retirement for 3 years now. We also plannned and saved for medical expenses/premiums since we will FIRE at 55. This has given us comfort knowing our budget is realistic, and confirming we can maintain this during retirement with savings and DH small pension. We budgeted 3.5% inflation, 0% returns until retirement, and 6% after retirement. For SS we are assuming only 75% of what might be available- and still have some room. We also have a budget for car replacements, maintenance etc.
I do think retirment is a plan that has to be worked and tweaked. If you can "try it on" before jumping in, it really helps!