Finalleh, took me about 5 hats to get this done

Sale 1

http://www.tf2outpost.com/trade/26210272 Sold for Smoking Hoodie

Hoodie had no trade, presuming offered

X = 14*0.9

X = 13

Hoodie http://backpack.tf/item/1168134599

Jeepcap http://backpack.tf/item/1359667664

Mini for Hoodie

http://backpack.tf/vote/id/55e9863fba8d88b3558b4568 14 keys, using 14

Sale 2

http://www.tf2outpost.com/trade/26287142 Sold with 4 keys of sweets for KaW Attendant

Attendant had no trade, but clear it wasn't offered

X + 4 = 17

X = 13

Attendant http://backpack.tf/item/3858620384

Jeepcap http://backpack.tf/item/1162917358

Sweets https://gyazo.com/58e64bc33a08c15dea0befff80fd60a4 http://backpack.tf/profiles/76561198088670603?time=1434783600&compare=1435215600

Mini for Attendant

http://backpack.tf/vote/id/55e98382dea9e9917b8b4568 17 keys, using 17

Sale 3

http://www.tf2outpost.com/trade/26910659 Sold for Pro KS Aussie Bluts

B/O for Cap was 13

X = More than 13

X = 13 (B/O)

Bluts http://backpack.tf/item/2143951332

Jeep http://backpack.tf/item/515702914