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*Chance in playoffs100.0*Average seed
Reds 37 Rebels 23 +2.7
Brumbies 24 Hurricanes 12 +2.1
+1.0
Highlanders 22 Chiefs 45 -0.2
Sharks 31 Lions 24 -0.1
-0.1
Jaguares 25 Stormers 14 +0.1
Sunwolves 42 Bulls 37 +0.3
Week of 7/7100.0*Chance in playoffs100.0*Average seed
Chiefs 24 Brumbies 19 Out
-0.3
Stormers 27 Sharks 16 +1.3
-0.1
Bulls 43 Jaguares 34 -0.3
Week of 7/14100.0*Chance in playoffs100.0*Average seed
Waratahs 31 Brumbies 40 +0.7
Lions 38 Bulls 12 +0.3
Sharks 20 Jaguares 10 -0.2
Points
Chance Will Make Playoffs