Thanks to Polar for the resuggestion

Trade #1

http://www.tf2outpost.com/trade/22898242 sold with a pro killstreak australium tomislav for a fountain of delight skullcracker

Taunt (3.4) - tomislav (1) = 2.4

Tomislav - http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Australium%20Tomislav

Selling for around 16-18 keys consistently so round to 1 bud

Proof for trade:

Seller's Backpack before: http://backpack.tf/profiles/76561198046757817?time=1412146800

after: http://backpack.tf/profiles/76561198046757817?time=1412233200

Buyer's Backpack before: http://backpack.tf/profiles/76561198045151883?time=1412146800

after: http://backpack.tf/profiles/76561198045151883?time=1412233200

Trade #2

http://www.tf2outpost.com/trade/22721099 sold for a gifted Bubbling Vintage Tyrolean and a Stormy Storm Big Country

0.9+1.07 (rounding to 1.1) = 2 buds 2*0.9 = 1.8

Mini for Tyrolean

http://www.tf2outpost.com/trade/22942096 - tyrolean sold without big kill for a steaming scotch bonnet (1)

1*0.9 = 0.9

Trade #3

http://www.tf2outpost.com/trade/23008569 - sold for beams sack ~2.6

Mini for sack

http://www.tf2outpost.com/trade/23138359 - polar's was sold for more than the b/o of 3 in unusuals. probably still close to 3 in value

2.6 after overpay

Sale #4

http://www.tf2outpost.com/trade/22867442 - 2.5 after overpay

Sales at 1.8, 2.4, 2.5 and 2.6

Sale at 1.8 went within a day

Suggested price at 2.4-2.6