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
Sandridge Rover 5 Hollybush 3 No
-10.2
+0.2
Exiles 6 Diamond Dogs 2 -13.9
+0.2
Racey Roystoners 0 Garibaldi 8 +23.8
-0.5
Week of 9/6100.0*Promotion100.0*Relegation100.0*Average seed
Racey Roystoners 0 Sandridge Rover 8 +23.3
-0.3
Diamond Dogs 3 Garibaldi 5 -13.9
+0.2
If winner is:HomeDrawAway
Week of 9/13100.0*Promotion100.0*Relegation100.0*Average seed
Hollybush vs Racey RoystonersYes+6.3-18.9
-0.1-0.1+0.2
Sandridge Rover vs Diamond Dogs-18.8+6.3+6.3
+0.2-0.1-0.1

What If

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

100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titlePromotion1234567RelegationCount
91-0-0NoNo0257574.7%793,576,460
80-1-0NoNo010099.91,582,511,983
70-0-1NoNo100Yes793,550,877
Total:NoNo069493.6%3,169,639,320
Games Above .500
Chance Will Win Championship