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
Kings 37 Highlanders 10 +14.0
+0.2
Sunwolves 12 Waratahs 57 +4.6
+2.2
+0.2
Hurricanes 37 Blues 27 -4.4
Brumbies 43 Reds 24 -3.6
-6.3
-0.2
Chiefs 23 Crusaders 13 -1.4
Week of 7/8100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Waratahs 17 Hurricanes 28 -21.5
-25.1
-1.0
Jaguares 8 Highlanders 34 -5.9
-0.1
Blues 40 Brumbies 15 +1.2
+18.1
+0.4
Week of 7/15100.0*Chance in playoffs100.0*Home Quarterfinal100.0*Average seed
Blues 34 Waratahs 28 Out
No
-0.6
Brumbies 24 Force 10 Out
No
-0.4
Points
Chance Will Make Playoffs

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 7/1100.0*Lottery seed
Brumbies 43 Reds 24 +0.3
Sunwolves 12 Waratahs 57 -0.3
Kings 37 Highlanders 10 -0.2
Jaguares 29 Bulls 11 -0.2
Rebels 31 Stormers 57 +0.0
Hurricanes 37 Blues 27 +0.0
Week of 7/8100.0*Lottery seed
Waratahs 17 Hurricanes 28 +1.5
Blues 40 Brumbies 15 -0.7
Jaguares 8 Highlanders 34 +0.1
Force 3 Stormers 22 +0.0
Bulls 50 Sunwolves 3 +0.0
Reds 5 Chiefs 50 +0.0
Week of 7/15100.0*Lottery seed
Blues 34 Waratahs 28 +1.0
Brumbies 24 Force 10 +0.6
Cheetahs 17 Bulls 43 +0.2