How are these numbers calculated?

Big Games

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

Week of 10/12100.0*Chance in playoffs100.0*Supporters Shield100.0*Average seed
Impact 0 New England 1 -11.7
-2.1
-0.8
Galaxy 1 Impact 0 -6.3
No
-0.3
FC Dallas 2 Fire 3 -3.4
-0.1
DC United 1 Union 1 +0.8
+0.1
Week of 10/19100.0*Chance in playoffs100.0*Supporters Shield100.0*Average seed
Impact 2 Union 1 +25.4
+0.8
Fire 1 Toronto FC 0 -3.8
-0.1
New England 3 Crew 2 -3.6
-0.1
Dynamo 0 Red Bulls 3 +2.3
+0.3
Week of 10/26100.0*Chance in playoffs100.0*Supporters Shield100.0*Average seed
Crew 0 New England 1 -21.4
-0.7
DC United 1 Dynamo 2 -10.5
-0.5
Toronto FC 1 Impact 0 -3.9
-0.5
Red Bulls 5 Fire 2 +3.8
+0.3
Points
Chance Will Make Playoffs

Lottery

Why are you looking down here? We just made the playoffs!

Big Games

Week of 10/12100.0*Lottery seed
Impact 0 New England 1 +1.7
Galaxy 1 Impact 0 +0.7
FC Dallas 2 Fire 3 +0.2
DC United 1 Union 1 -0.1
Week of 10/19100.0*Lottery seed
Impact 2 Union 1 -1.6
Dynamo 0 Red Bulls 3 -0.5
Fire 1 Toronto FC 0 +0.2
New England 3 Crew 2 +0.2
Week of 10/26100.0*Lottery seed
Crew 0 New England 1 +1.4
Toronto FC 1 Impact 0 +1.1
DC United 1 Dynamo 2 +1.0
Red Bulls 5 Fire 2 -0.5