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 -24.3
-3.8
-0.7
Sharks 31 Lions 24 -7.9
-0.1
Sunwolves 42 Bulls 37 +1.2
Jaguares 25 Stormers 14 -1.0
-0.1
Brumbies 24 Hurricanes 12 -1.0
Highlanders 22 Chiefs 45 -0.1
Crusaders 45 Highlanders 22 +0.0
Week of 7/7100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Stormers 27 Sharks 16 +23.1
+0.3
Bulls 43 Jaguares 34 +3.8
+0.1
Chiefs 24 Brumbies 19 +2.1
+0.1
Waratahs 77 Sunwolves 25 -0.1
No
-0.0
Week of 7/14100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Sharks 20 Jaguares 10 -39.2
-0.2
Highlanders 43 Rebels 37 -13.8
-0.3
Points
Chance Will Make Playoffs