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
Houston 2 Seattle 3 +1.8
+0.8
Portland 3 RSL 0 -0.4
-0.1
FC Dallas 0 Sporting KC 3 -0.2
-0.1
LAFC 2 Vancouver 2 +0.2
+0.1
Week of 10/28100.0*Win MLS Cup100.0*Average seed
Seattle 2 San Jose 1 +1.0
+0.4
Sporting KC 2 LAFC 1 +0.3
+0.1
Colorado 2 FC Dallas 1 +0.3
+0.5
Vancouver 2 Portland 1 +0.2
+0.0
Points
Chance Will Make Playoffs