...Close enough?

Sale 1 QUICKSELL

http://www.tf2outpost.com/trade/24440775 Sold for OF Capotain

Capotain had no trade, presuming offered

X = 13*0.9

X = 12

Capotain http://www.tf2outpost.com/item/440,3390361837,259,5

HWAH http://backpack.tf/item/1589226841

Sale 2 QUICKSELL

http://www.tf2outpost.com/trade/23927371 Sold for Steaming Festivizer

B/O for HWAH was 1.5 buds

X = 14*0.9

X = 13

Festivizer http://backpack.tf/item/610583258

HWAH http://backpack.tf/item/2890949885

Mini for Festivizer

http://www.tf2outpost.com/trade/23735035 Sold for Planets Hound Dog

B/O for Hound Dog was 1

B/O for Festivizer was 1 (15 keys)

X = 15*0.9

X = 14 keys

Dog http://backpack.tf/item/746097673

Festivizer http://backpack.tf/item/610583258

Sale 3

http://www.tf2outpost.com/trade/24007592 Sold for DP Ceremonial

B/O for HWAH was 1.1

X = 1.2*0.9

X = 1.1 (14.5 keys)

X = 15 keys

Sultan http://backpack.tf/item/2213321279

HWAH http://backpack.tf/item/1098418643

Sale 4

[No OP Trade] Sold for Twatt Handyman's

HWAH had no trade, presuming offered

X = 1.2

X = 16 keys

Handle http://backpack.tf/item/2182141521

HWAH http://backpack.tf/item/1098418643