Household food waste may or may not be a nutritious as production chicken food, but the food waste will be a supplement, so let's use 6 pounds of feed per dozen eggs. That means a half pound of food makes 1 egg. So 500 pounds of food waste each day should produce 1,000 eggs a day!
Can these chickens actually eat five pounds of food waste each week, if "an egg-type hen will consume about 85-95 pounds of feed/bird/year"? That means each hen only eats about a quarter pound of feed each day and the average household is producing a half pound. With four chickens food scraps would behalf their diet with room for bugs in the yard and commercial feed. Taking the number to six (which CLUCK has supported) would mean one third their diet would be household food waste and two thirds forage and commercial feed.
You can question the math however you want, cut the number of households in half, or further discount the feed conversion ratio. And I will adjust these numbers if someone gives me better data. But the fact remains that however you jigger the numbers, we'd be better off converting food waste to edible eggs than putrescence in a landfill.