How are these numbers calculated?

Big Games

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

Week of 8/12100.0*Chance in playoffs100.0*Average seed
Mike Neal 530 Andrew 497 -23.2
-0.9
Luis 527 Alty 488 -5.4
-0.1
Randy 407 Gallo 422 -2.7
-0.1
Lapi 511 OQ 312 -2.2
-0.1
Santomauro 553 Billy 488 +0.3
If winner is:HomeAway
Week of 8/19100.0*Chance in playoffs100.0*Average seed
Andrew vs Randy+21.0-21.1
+0.7-0.7
Vinny vs Luis+6.1-6.1
+0.1-0.1
Gallo vs Manny-4.2+4.2
-0.1+0.1
Alty vs Santomauro-1.7+1.7
-0.1+0.1
OQ vs Mike Neal+1.2-1.2
Billy vs Lapi+1.0-1.0

What If

Chances based on how well the Andrew finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
11.52-0-084.2%837381504,180,691
10.51-1-08.1872208,354,943
9.50-2-0Out1613354,177,502
Total:25.1%291440258116,713,136
Games Above .500
Chance Will Make Playoffs