Numbeo has a great cost of living comparison tool. Here's Toronto vs NYC. It shows that you need less money in Canada to maintain the same level of living.
https://www.numbeo.com/cost-of-living/compare_cities.jsp?cou...
I think the big one is this
> Rent Prices in New York, NY are 116.10% higher than in Toronto
It also doesn't account for different things like healthcare costs, etc.