How are these numbers calculated?

Big Games

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

If winner is:HomeDrawAway
Week of 10/1100.0*Average seed
South Africa vs Australia+0.4-0.2-0.3
Argentina vs New Zealand-0.5-0.4+0.1

What If

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

100100100100
If finish:ChanceChance will finish season at seed
TPW-OTLDwins titleChampionship1234Count
122-000NoNo1004,762,395,599
101-001NoNo32684,007,455,232
81-010NoNo2376170,976,467,576
0-002NoNo964446,033,941
60-011NoNo663413,857,057,670
40-020NoNo5941103,385,482,070
Total:NoNo116424197,434,892,088
Points
Chance Will Win Championship