Sale 1:

Sold for a Stare DCO

http://backpack.tf/profiles/76561198142094245?time=1443682800&compare=1443769200

188 X 0.9 = 169

Sale 2:

Sold for 170 pure + Bubbling Gonzilla + ~1.5 keys' sweets

http://imgur.com/a/8QxV3

((14 + 1.5) X 0.9) + 170 = 184

Gonzilla mini:

Sold alongside a key for a Steaming Cowl

http://backpack.tf/profiles/76561198088788540?time=1442300400&compare=1442559600

15 - 1 = 14

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Unusable sales:

Sale 1:

Sold alongside ~9 keys' sweets for a Circling Heart Boxcar Bomber (used to price the Bomber)

http://backpack.tf/profiles/76561198142094245?time=1446015600&compare=1446102000

Sale 2:

Sold alongside a pro aussie knife + pro aussie ambi + 5 pure for a Burning FFF (used to price the FFF)

http://backpack.tf/profiles/76561198047704729?time=1446537600&compare=1446624000

Sale 3:

Makes no sense to me

http://backpack.tf/profiles/76561198036128056?time=1442214000&compare=1442127600