How are these numbers calculated?

Big Games

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

Week of 4/18100.0*Chance wins title100.0*Playoffs100.0*Last Place100.0*Average seed
Cardinal 58 White 51 -1.1
-4.3
-0.1
Stone 76 Lime 48 -0.2
+1.0
Sunset 47 Black 44 +0.2
+0.5
Royal 67 Gold 60 +0.8
Week of 4/25100.0*Chance wins title100.0*Playoffs100.0*Last Place100.0*Average seed
White 42 Gold 53 -6.8
-47.8
+0.1
-1.1
Cardinal 49 Stone 25 +0.7
+6.5
+0.1
Lime 43 Sunset 41 +0.2
+1.7
Royal 61 Black 48 +0.1
+0.8
No
+0.0
Week of 5/2100.0*Chance wins title100.0*Playoffs100.0*Last Place100.0*Average seed
Stone 49 White 52 +5.7
Yes
+1.8
Black 50 Gold 56 -0.6
-0.2
Lime 49 Royal 46 -0.4
-5.0
-0.6
Games Above .500
Chance Will Win Championship