How are these numbers calculated?

Big Games

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

Friday, 5/26100.0*Chance in playoffs100.0*Average seed
Redwood 3 Bears 2 +13.4
+1.7
Heat2 9 Condors 6 -2.1
-0.1
Bay 2 Jets 3 -2.0
-0.2
Heat2 5 Islanders 5 +1.1
+0.1
Saturday, 5/27100.0*Chance in playoffs100.0*Average seed
Redwood 9 Condors 2 +25.4
+1.8
Islanders 0 Flyers1 14 -2.5
-0.0
Bay 0 Bears 3 +0.9
+0.1
Jets 4 Flyers2 6 -0.0
Sunday, 5/28100.0*Chance in playoffs100.0*Average seed
Heat1 3 Jets 1 +0.4
+0.1
If winner is:HomeTieAway
Bay vs Redwood-45.0+8.2+43.2
-1.0+0.2+1.0
Condors vs Flyers1+9.9-1.4-9.6
+0.2+0.1-0.3
Flyers2 vs Heat2-5.6+8.1+3.8
-0.0+0.2-0.0
Heat1 vs Islanders-1.6+1.3+1.3
-0.2+0.2+0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTTplayoffs12345678910Count
610-0091.8%514182,890,037
500-0156.8104743641,294
401-003.54484082,890,609
Total:48.6%2425301846,421,940
Points
Chance Will Make Playoffs