Here is a pretty simple calculation for those that wish to spend more money in retirement and do not care about leaving an estate. For those that have a Big enough Portfolio and can afford to wait until 70 to take SS, you'll have more to spend every year of retirement.
Let's Say you retire this year at age 62 with the $1 Million Portfolio and decide to take a 4% SWR. You get Social Security of $19,476 per year at age 62 and delaying to age 70 would get you $34,092 per year. Let's assume no inflation for ease of calculations.
Scenario age 62. Your SWR is $40K per year and Social Security of $19,476 gets you a Spending total of $59,476 for each year of your retirement period.
Scenario age 70. You stash 8 years of $34,092 from your portfolio into a savings account for a total of $272,736. Your portfolio is now down to $727,264. Your 4% SWR is now $29,090 per year and you remove $34,092 from your savings account giving you a total of $63,182 to spend each year for the rest of your 30 year retirement period.
The Delay to age 70 gives you $3,706 more every year starting at age 62 with no more increased risk.
No need for any ... 'break even analysis'.
If your WR is more conservative, such as a majority of the people here and myself, the results are even more compelling. At a 3% WR plus SS at age 62 scenario is a total of $49,476 and the age 70 scenario is $55,910. The delay of SS to age 70 now increases your annual spending by $6,434.