First time refresh a price.

Sale 1

http://www.tf2outpost.com/trade/21617917 - Traded for a Purple Confetti Charmer's Chapeau (2.3 buds). No overpay (Outlier)

Sale 2

http://www.tf2outpost.com/trade/21123219 - Sold for a Aces High Horrific Headsplitter (3.4*0.9 = 3 buds)

Sale 3

http://www.tf2outpost.com/trade/21115493 - Sold for a Blizzardy Storm Bonk Boy + 5 keys (2.9*0.9 + 0.3 = 2.9 buds = round to 3 buds)

Sale 4

http://www.tf2outpost.com/trade/21729137 - Sold for 56 keys (3 buds)

Unused sales

http://www.tf2outpost.com/trade/20971409 - Sold for a Steaming Samur-Eye and Steaming Killer's Kabuto + 1 key

http://www.tf2outpost.com/trade/20907153 - Complicated sale

http://www.tf2outpost.com/trade/20726108 - Complicated sale

http://www.tf2outpost.com/trade/22221474 - Sold for a Electrostatic Noble Amassment of Hats

http://www.tf2outpost.com/trade/21721272 - Sold for a Sunbeams Dead Cone

http://www.tf2outpost.com/trade/22174249 - Complicated sale.

http://www.tf2outpost.com/trade/22147074 - Complicated sale.

http://www.tf2outpost.com/trade/21894387 - Sold for a Haunted Ghosts Flipped Trilby

http://www.tf2outpost.com/trade/21714529 - Unconfirmed.

Feel free to counter / support my proofs.