Without reading the comments this is a well to be couple with high income: "He saved at least 25% of his income, putting away as much as $50,000 annually in a good year."
That's $200k of income right there.
Not necessarily. If we assume that "He saved at least 25% of his income" means that that's how much he saved in his
worst year, and "as much as $50,000 annually in a good year" was the
best that he did, then he could have easily had only $100,000 in income, saving between 25% and 50% from year to year, and still fall within the estimated parameters.