How are these numbers calculated?

Big Games

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

Week of 2/25100.0*Chance wins title100.0*Average seed
Scotland 29 Wales 13 +11.9
+0.9
England 36 Italy 15 -2.0
-0.1
Ireland 19 France 9 -1.8
-0.0
If winner is:HomeDrawAway
Week of 3/10100.0*Chance wins title100.0*Average seed
Wales vs Ireland+6.3+4.8-6.6
+0.0+0.3-0.0

What If

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

100100100100100100
If finish:ChanceChance will finish season at seed
TPW-OTLDwins title123456Count
162-00068.3%68322,376,399,850
141-00123.924751326,925,683
121-010No2361174,744,428,221
0-002No8632811,264,238
100-011No560340326,935,355
80-020No457392,376,435,713
Total:16.7%17213122910,162,389,060
Points
Chance Will Win Championship