How are these numbers calculated?

Big Games

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

Week of 2/26100.0*Chance wins title100.0*Playoffs100.0*Last Place Game100.0*Average seed
We Bowl Bowling 0 Snakes on the L 451 No
No
+16.5
-1.2
Gutter? I hardl 0 Split Personali 550 -0.3
-0.7
-2.1
+0.1
Sexy Jo Jo & th 0 Strike Cognition 570 +0.3
+0.5
+2.4
-0.1
Duck Duck Turkey 481 Strike Gold 0 -3.8
Week of 3/5100.0*Chance wins title100.0*Playoffs100.0*Last Place Game100.0*Average seed
We Bowl Bowling 553 Split Personali 562 +24.9
-1.0
Oddballs 0 Strike Cognition 570 -7.7
+0.2
Sexy Jo Jo & th 702 Gutter? I hardl 0 -7.6
+0.2
Strike Gold 0 Snakes on the L 405 -6.3
+0.1
Week of 3/12100.0*Chance wins title100.0*Playoffs100.0*Last Place Game100.0*Average seed
We Bowl Bowling 613 Duck Duck Turkey 0 No
+1.0
Games Above .500
Chance Will Win Championship