How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 4/26100.0*Chance in playoffs100.0*Promoted100.0*Average seed
Windies III vs West Van VII-9.2+9.8
-7.7+8.2
-0.6+0.6
West Van VI vs Brn Windies I-0.1+0.2
-0.2+0.2
Ind-Can II vs WC Tamils IV+0.1-0.1
-0.1+0.1
Meraloma IV vs Salim Akbar III-0.1+0.1
If winner is:HomeAway
Week of 5/3100.0*Chance in playoffs100.0*Promoted100.0*Average seed
West Van VII vs WC Tamils IV+8.8-9.3
+7.4-7.8
+0.5-0.6
Windies III vs West Van VI+0.1-0.1
+0.2-0.2
Brn Windies I vs Ind-Can II+0.1-0.1
+0.3-0.3
Salim Akbar III vs Meraloma IV+0.1-0.1

What If

Chances based on how well the West Van VII finish out the regular season.   Explain

100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-LplayoffsPromoted123456789Count
68-72InYes10026,673*
6416-2InYes100045,033
6015-3InYes1000239,446
5614-4InYes991896,583
5213-5In100.0%94602,510,450
4812-6In98.87523105,434,050
4411-7100.0%86.2384813109,336,041
4010-898.538.3533441610012,827,659
369-963.91.50218443060014,251,139
328-104.80.00052845202012,825,721
287-110.0No00115433569,331,057
246-12OutNo011248395,439,275
205-13OutNo0123762,512,075
164-14OutNo0694896,864
123-15OutNo199238,937
82-16OutNo010044,813
0-4OutNo10026,666*
Total:53.1%28.9%151412121110109776,882,482

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs