How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 6/30100.0*Home Quarterfinal100.0*Average seed
Brumbies 24 Hurricanes 12 +5.4
+0.1
Highlanders 22 Chiefs 45 -2.4
-0.6
Crusaders 45 Highlanders 22 No
-0.3
Reds 37 Rebels 23 +0.1
Jaguares 25 Stormers 14 -0.0
Week of 7/7100.0*Home Quarterfinal100.0*Average seed
Bulls 43 Jaguares 34 +0.3
Chiefs 24 Brumbies 19 -0.1
Week of 7/14100.0*Home Quarterfinal100.0*Average seed
Highlanders 43 Rebels 37 +0.2
Sharks 20 Jaguares 10 +0.2
Points
Chance Will Make Playoffs