How are these numbers calculated?

Big Games

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

Week of 1/19100.0*Chance in playoffs100.0*Average seed
Bremner's 0 McHugh's 1 -12.7
-0.1
Week of 1/26100.0*Chance in playoffs100.0*Average seed
Orr's 1 McHugh's 0 In
+0.7

What If

Chances based on how well the Orr's finish out the regular season.   Explain

100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345Count
50-0-0In65351,647,757,668
Total:In65351,647,757,668
Games Above .500
Chance Will Make Playoffs