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 +18.6
+0.2
Sharks 31 Lions 24 +13.0
+0.7
Jaguares 25 Stormers 14 -1.6
+0.0
Sunwolves 42 Bulls 37 +0.6
+0.2
Brumbies 24 Hurricanes 12 -0.4
-0.2
Highlanders 22 Chiefs 45 -0.1
Week of 7/7100.0*Chance in playoffs100.0*Average seed
Stormers 27 Sharks 16 -26.6
-0.5
Chiefs 24 Brumbies 19 +2.1
+0.1
Bulls 43 Jaguares 34 +1.1
+0.1
Week of 7/14100.0*Chance in playoffs100.0*Average seed
Sharks 20 Jaguares 10 +39.2
+0.7
Highlanders 43 Rebels 37 +13.8
+0.1
Waratahs 31 Brumbies 40 -0.4
Lions 38 Bulls 12 +0.2
Points
Chance Will Make Playoffs