$850. Are you dyslexic?

If you mean for a family of 4, then yes I believe that, and so far I'm the only one who has provided a source.

Let's see you put up some evidence that a family of four living on expensive eco groceries spend only $500 in total per month.

What's the most likely, that every metric I've looked up online is wrong and that it costs $4 per person to live off healthy eco food for 3 meals per day as you claim, or $1.30 per meal, or that you're full of shit. Hmmm....