How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Saturday, 1/16100.0*Chance in playoffs100.0*Average seed
London 1 Regina 10 +5.2
+1.8
Hamilton 1 Saskatoon 2 -2.9
Toronto 2 Winnipeg 1 +1.7
+0.2
Quebec 3 Calgary 19 +0.3
-0.2
Edmonton 6 St. John's 2 +0.1
+0.1
Yukon 4 Montreal 1 -0.1
If winner is:HomeAway
Thunder Bay vs Ottawa+1.4-0.5
+0.3-0.1
If winner is:HomeAway
Sunday, 1/17100.0*Chance in playoffs100.0*Average seed
Quebec vs MontrealOut+9.2
-0.1+0.3
Yukon vs CalgaryOut+4.4
-0.4+0.5
Regina vs Thunder Bay+1.2Out
+0.9-2.4
Ottawa vs London+2.3-2.1
+0.4-0.4
Nova Scotia vs St. John's+0.6-2.4
+0.2-0.6
Winnipeg vs Saskatoon-1.3+0.8
-0.3+0.2
Vancouver vs Edmonton+0.6-0.6
-0.1+0.1
Hamilton vs Toronto-0.2+0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516Count
81-04.6%5121529241329,327,764
70-1Out0223037123,506,044
Total:3.3%3811211816910312,833,808
Games Above .500
Chance Will Make Playoffs