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 +3.9
+0.6
Ireland 19 France 9 +0.2
-0.0
England 36 Italy 15 -0.1
-0.0
If winner is:HomeDrawAway
Week of 3/10100.0*Chance wins title100.0*Average seed
Wales vs Ireland+2.4+1.8-1.4
+0.3+0.4-0.2

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
162-00053.6%54464,299,240,794
141-0015.768871,130,180,898
121-010No14642224,232,635,872
0-002No6583535,858,396
100-011No456400950,836,189
80-020No1063271,695,976,567
Total:7.3%7205021132,344,728,716
Points
Chance Will Win Championship