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*Home Quarterfinal100.0*Average seed
Reds 37 Rebels 23 +0.7
+13.5
+0.6
Sharks 31 Lions 24 -0.4
+0.1
Jaguares 25 Stormers 14 -0.3
-0.1
Highlanders 22 Chiefs 45 -0.1
Week of 7/7100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Bulls 43 Jaguares 34 In
+0.1
Stormers 27 Sharks 16 In
Waratahs 77 Sunwolves 25 In
Yes
+0.7
Week of 7/14100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Lions 38 Bulls 12 -0.3
Waratahs 31 Brumbies 40 -0.2
Points
Chance Will Make Playoffs