I would think the profit on those jerseys would be more like $50. The Jets will sell most of them themselves through their supporter store and stadium shops. They will be able to do it cheaper than Rebel with mass production of the Heskey #9 numbering and they give members a discount. So I think around $150k profit on this.
Extra members - to reach 11,000 say an extra 1,500 members at an average of $150 = $225,000
Extra game day sales - 15,000 compared to this years average of 12,000 = 3,000 at $20 = $60,000 x 13 games = $780,000.
This gives a total of $1,155,000.
We don't know how much he is being paid but the Herald say $700,000 and others say $1m.