If you beat a team that is currently in the Top 100, they give you one dollar sign for a good win, Top 25 wins are two dollar signs. If you lost to a team outside the Top 100, it's a bad loss, one question mark. Outside the Top 200 losses are 2 question marks.
As far as the formula goes, it's 25% your winning percentage, 50% your opponents' winning percentage, and 25% your opponents' opponents winning percentage. In each case, they don't count your game with your opponent in the opponents' winning percentage. For example, if you beat a team that was 10-0, their record added to your 50% category would be 10-0, not 10-1.
And they give weight to home games and road games. I believe the factor is a road win counts 1.4 wins. Road losses count as 0.6 losses. Home wins count as 0.6 wins, and home losses count as 1.4 losses.
It's something similar to that, so if you are 10-0, like the example above, your record wouldn't necessarily be 10-0 for the calculation. It may be something more like 8.6-0.