Toronto

"Retail grocery margins in Canada are estimated at approximately 3-5 per cent on food items. Even if a City-run grocery model eliminated these margins entirely, this would translate to approximately $40-$73 per household per month in maximum theoretical savings (or $11 to $18 per person per month), and likely less once operating costs are considered," the letter reads.

No way it's 3-5% for the major retailers in Toronto proper. I've paid $12 for a few onions at Sobeys. Never thought I'd experience onion sticker shock. The same product at Lucky Moose is maybe $5.