How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance in playoffs100.0*Average seed
John 72.8 Evan 122.4 +9.5
+0.5
Piatt 91.3 Ryan 86.4 +3.2
+0.1
Kevin 63.4 Stephen 93 +1.6
Becky 97.2 Jess 108.8 +0.1
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Evan 110.3 Becky 110.1 In
+0.6
Stephen 82.7 John 128.4 +1.0
Ryan 83.9 Kevin 123.3 +0.3
+0.1
Jess 53.7 Piatt 116.3 -0.1
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Becky 116.9 Stephen 72.4 -0.3
Piatt 72.4 Evan 78.9 +0.3
Games Above .500
Chance Will Make Playoffs