How are these numbers calculated?

Big Games

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

Week of 11/27100.0*Chance in playoffs100.0*Average seed
Irel 144 KBen 132.8 -16.6
-1.3
Chew 142 WiCa 162.4 +0.5
Week of 12/4100.0*Chance in playoffs100.0*Average seed
Tank 140 Suck 117.5 -0.2
Chew 127.3 Irel 152.2 +0.0
Week of 12/11100.0*Chance in playoffs100.0*Average seed
Apex 93.2 KBen 108.2 In
Male 76.6 Irel 179.1 In
Suck 119.4 Chew 89.3 +0.8
Funk 143.8 Tank 120.4 +0.5
Games Above .500
Chance Will Make Playoffs