How are these numbers calculated?

Big Games

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

Week of 3/11100.0*Chance wins title100.0*Playoffs100.0*Last Place Game100.0*Average seed
GREY 9 SKY 5 -5.2
-20.9
+9.9
-1.2
GOLD 17 IRISH 2 -0.8
-3.3
-0.1
ROYAL 5 WHITE 3 +0.7
+3.0
+0.4
+0.1
LIME 9 MAROON 10 -0.3
-1.2
+2.2
-0.2
PINK 16 AZALEA 1 -0.2
-1.1
-1.0
Week of 3/18100.0*Chance wins title100.0*Playoffs100.0*Last Place Game100.0*Average seed
ROYAL 1 LIME 19 -2.0
-7.8
-5.3
SKY 11 AZALEA 3 +0.3
+1.1
No
+0.6
PINK 15 MAROON 9 +0.3
+1.1
-0.5
+0.2
GREY 23 IRISH 3 +0.3
+1.1
+0.3
+0.1
WHITE 11 GOLD 6 +0.6
Week of 3/25100.0*Chance wins title100.0*Playoffs100.0*Last Place Game100.0*Average seed
ROYAL 9 SKY 5 No
No
-1.3
GREY 5 GOLD 4 +1.0
+3.9
+0.3
MAROON 15 IRISH 1 -0.5
Games Above .500
Chance Will Win Championship