How are these numbers calculated?

Big Games

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

Week of 10/10100.0*Chance in playoffs100.0*Supporters Shield100.0*Average seed
Toronto FC 2 NY Red Bulls 1 In
+0.3
+0.7
Colorado 0 Montreal 1 -0.2
-0.1
FC Dallas 2 Vancouver 0 -0.1
Week of 10/16100.0*Chance in playoffs100.0*Supporters Shield100.0*Average seed
Real Salt Lake 0 FC Dallas 1 No
Toronto FC 0 Columbus 2 No
-1.2
DC United 4 Chicago 0 -0.3
New England 0 Montreal 1 -0.0
Week of 10/25100.0*Chance in playoffs100.0*Supporters Shield100.0*Average seed
Montreal 2 Toronto FC 1 -0.9
NYCFC 1 New England 3 -0.4
Columbus 5 DC United 0 -0.1
Points
Chance Will Make Playoffs