Universal Basic Income?
They would obviously have to keep the total below that of the average wage, but to be honest from what I've seen in Canada is the cost of living in a lot of cities tends to be greater than that of the average salary. So there would definitely need to be a significant amount of money given in order to keep people afloat.
In my personal opinion if you can't afford to live an average life in a first world country off of the average salary then there is a fundamental issue with your system and it is up to the government to either lower the living cost or subsidize some of the costs.
I pulled my information from this site and I found it quite interesting:
https://www.careerbeacon.com/en/cost-of-living/canada