To reach 100m consoles sold lifetime(let's say within 10 years) you need to sell 10m consoles each year. Very simple math. If you sell 5m during the holidays, Nov-Jan usually in the west, you need to sell between 300-800k/month on average for the rest of the months.
EDIT: Sorry I see now that you said weekly.
So then it would be around 350-450k/weekly during Nov-Jan, and 75-200k/weekly during Feb-Oct.
EDIT2: I could add lifetime sales as well now.
I believe that 150m or more lifetime is a great achievement.
More than 100m consoles lifetime is a good achievement.
More than 50m consoles lifetime is OK.
Below 50m consoles lifetime is a failure.








