How are these numbers calculated?

Big Games

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

Week of 10/13None
Week of 10/21100.0*Win MLS Cup100.0*Average seed
DC United 3 NYCFC 1 -0.5
-0.1
Philadelphia 0 NY Red Bulls 1 +0.3
+0.1
Orlando 2 Columbus 1 +0.1
Week of 10/28100.0*Win MLS Cup100.0*Average seed
NYCFC 3 Philadelphia 1 +1.0
+0.3
Chicago 0 DC United 0 +0.3
+0.1
Points
Chance Will Make Playoffs