Since you (kinda) asked:
RPI = (WP * 0.25) + (OWP * 0.50) + (OOWP * 0.25)
WP = Winning percentage
OWP = Opponent's Winning percentage
OOWP = Opponent's Opponent's Winning percentage
Home win counts as 0.6 of a win, road win counts at 1.4 of a win, neutral court win counts as 1.0.
Similarly, home losses count as 1.4 of a loss, a road loss counts as 0.6 of a loss, etc.
And there you have it.
Currently, SU has a NET of 81, and an RPI of 96. Both have been trending down lately (by down I mean lower numbers, which is good).