How are these numbers calculated?

Big Games

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

Week of 8/30100.0*Promotion100.0*Relegation100.0*Average seed
Exiles 6 Diamond Dogs 2 No
+20.5
-0.5
Sandridge Rover 5 Hollybush 3 No
-5.6
+0.3
Racey Roystoners 0 Garibaldi 8 -15.5
+0.2
Week of 9/6100.0*Promotion100.0*Relegation100.0*Average seed
Diamond Dogs 3 Garibaldi 5 +22.1
-0.5
Racey Roystoners 0 Sandridge Rover 8 -10.5
+0.1
If winner is:HomeDrawAway
Week of 9/13100.0*Promotion100.0*Relegation100.0*Average seed
Sandridge Rover vs Diamond Dogs+18.9NoNo
-0.3+0.0+0.3
Hollybush vs Racey RoystonersNo-6.2+18.7

What If

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

100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titlePromotion1234567RelegationCount
101-0-0NoNo2575No793,532,753
90-1-0NoNo0100No1,582,535,109
80-0-1NoNo752525.2%793,571,458
Total:NoNo68766.3%3,169,639,320
Games Above .500
Chance Will Win Championship