Well you're not a very good mathematician then. I'm not here just for the insults, I will explain.
Teams that are 4 or 5 points clear after 7 matches are normally in that position because they are better than everyone else. They then get promoted because they are better than everyone else, and...
I don't think they are.
My mistake.
This thread is a poor example, in other threads it seems that we've all enjoyed the start, but we know it's very very early still, and we probably won't get promoted. Well, those that understand probability at least.
1.69, surely. 85 points - 19 = 66, / 39 games = 1.69. Over a season, that would be 78 points, which itself is no mean feat.
Stop counting those chickens, they've not hatched yet.