So far as I understand things, if you invest $1 million and get a 2.25 percent profit, you get back $1.0225 million. Not $2.25 million, which is what the article seems to say.
Living comfortably from a financial perspective. (No comment editing? Geez.)
It's about $600 more than the author was receiving at the time, and the author was living fairly comfortably.