How are these numbers calculated?

Big Games

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

Week of 2/26100.0*Chance in playoffs100.0*Average seed
Ducks 9 Gulls 2 -19.0
-0.2
If winner is:HomeTieAway
Leafs vs GullsOut-5.1+15.2
-0.1-0.1+0.2
OCHC vs LeafsOut+6.2+12.7
-0.1+0.1+0.1
If winner is:HomeTieAway
Week of 3/5100.0*Chance in playoffs100.0*Average seed
Heat vs OCHC+12.7+6.2Out
+0.1+0.1-0.1

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTTplayoffs1234567Count
410-0029.2%29718,100,180
300-018.99911,796,632
201-00Out1008,102,732
Total:14.0%148617,999,544
Points
Chance Will Make Playoffs