How are these numbers calculated?

Big Games

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

Week of 7/1100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Chiefs 23 Crusaders 13 +2.4
+30.5
+1.0
Brumbies 43 Reds 24 -0.3
Hurricanes 37 Blues 27 -1.9
-0.1
Kings 37 Highlanders 10 +6.7
+0.3
Week of 7/8100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Blues 40 Brumbies 15 In
Reds 5 Chiefs 50 In
+9.0
+0.3
Waratahs 17 Hurricanes 28 -6.6
-0.1
Crusaders 85 Rebels 26 -5.1
-0.1
Week of 7/15100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Highlanders 25 Chiefs 15 No
-1.2
Crusaders 10 Hurricanes 35 +0.7
Points
Chance Will Make Playoffs