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
ROYAL 5 WHITE 3 -5.3
-21.2
+3.4
-1.0
GOLD 17 IRISH 2 -0.5
-2.2
-0.8
-0.1
LIME 9 MAROON 10 +0.5
+1.7
+1.2
PINK 16 AZALEA 1 +0.1
+0.5
-0.9
GREY 9 SKY 5 -0.4
Week of 3/18100.0*Chance wins title100.0*Playoffs100.0*Last Place Game100.0*Average seed
WHITE 11 GOLD 6 +9.5
+37.9
No
+1.7
ROYAL 1 LIME 19 -1.4
-5.7
-0.1
GREY 23 IRISH 3 -0.7
-2.7
+0.1
-0.1
SKY 11 AZALEA 3 -0.3
-1.1
PINK 15 MAROON 9 +0.2
+0.6
-1.0
+0.1
Week of 3/25100.0*Chance wins title100.0*Playoffs100.0*Last Place Game100.0*Average seed
WHITE 11 AZALEA 7 +10.8
Yes
+1.1
ROYAL 9 SKY 5 -3.2
-12.8
-0.3
GREY 5 GOLD 4 -1.7
-6.9
-0.2
Games Above .500
Chance Will Win Championship