prophecypro
Hollywood North
The same way they do election polls with just a few thousand people like 3000 people.
I.e. If you have the first day sales you can look at how album sales historically move during the first week contingent on factors such as genre, e-sales, album store sales, planned events during the week, radio, reviews, tv and more
However, this projection of 30-35k was an early projection, the real projection is released today. I think it'll increase to 40-45.
And this "mixtape" will then be upgraded to a Limited Edition EP by these stans