I’m on a spellbound streak :D

Sale 1: (outlier)

Sold with a Spellbound Tough Muffs and 337 keys for a Spellbound Law

600 - (220*0.9) - 337 = 20 keys

Buyer Before: http://backpack.tf/profiles/76561197995194055?time=1429340400

Buyer After: http://backpack.tf/profiles/76561197995194055?time=1429599600

Sale 2:

Sold for a Ghastly Ghosts Jr War Pig

(84*0.9) = 75.6 rounding to 76 keys

Seller Before: http://backpack.tf/profiles/76561198040960211?time=1429513200

Seller After: http://backpack.tf/profiles/76561198040960211?time=1429945200

Notes:

Mini for the Spellbound Tough Muffs:

http://backpack.tf/vote/id/553e23aab88d88d6408b48c1#comment-553e2ddeba8d88b53b8b483f

Conclusion:

Outlier at 20 and one sale at and 76, taking the final price at 76 keys.