How are these numbers calculated?

Big Games

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

Thursday100.0*Average seed
Philadelphia 2 Carolina 3 (so)+0.2
Friday100.0*Average seed
Columbus 1 Buffalo 6 -0.5
Saturday100.0*Average seed
NY Islanders 1 Columbus 3 +0.6
Philadelphia 3 Ottawa 5 +0.4
Washington 1 NY Rangers 4 +0.2
Points
Chance Will Make Playoffs