Pricing this is a lot more confusing than I expected.

Thanks, Jacobmeister, for the tip. Thanks, Roller, for the additional sales.

Sale 1

http://www.tf2outpost.com/trade/27178430 - sold for a duped Cloud 9 Jumper's Jeep cap

Seller's BP before http://backpack.tf/profiles/76561198149031152?time=1444374000

Seller's BP after http://backpack.tf/profiles/76561198149031152?time=1444633200

Buyer's BP before http://backpack.tf/profiles/76561198074459493?time=1444374000

Buyer's BP after http://backpack.tf/profiles/76561198074459493?time=1444460400

Mini for Jeepcap

http://backpack.tf/profiles/76561198035884807?time=1447401600

http://backpack.tf/profiles/76561198035884807?time=1447574400

http://backpack.tf/profiles/76561198062852818?time=1447488000

http://backpack.tf/profiles/76561198062852818?time=1447574400

Sold for a Cloud 9 Soldier Slope Scopers = ~24-28 keys (outdated)

~26 * 0.9 = 23.4

Rounding to 23 keys

Not using

Sale 2

http://www.tf2outpost.com/trade/27273968 Sold for a Spooky Ghosts Belgian Detective

Seller's BP before http://backpack.tf/profiles/76561198042938501?time=1446796800

Seller's BP after http://backpack.tf/profiles/76561198042938501?time=1446969600

Djustice Item History: http://backpack.tf/item/4178478515

Buyer's BP before http://backpack.tf/profiles/76561198163792512?time=1446883200

Buyer's BP after http://backpack.tf/profiles/76561198163792512?time=1447056000

Belgian Detective Item History: http://backpack.tf/item/3059750440

45+48/2 = 46.5 * 0.9 = 41.85

Buyout was 32 keys, capping at that.

32 keys

Sale 3

http://www.tf2outpost.com/trade/27228275 - B/O 40 keys

Can't even find it in bp history

40 keys

Sale 4

http://www.tf2outpost.com/trade/27233002 - B/O 32 keys

Seller's BP before http://backpack.tf/profiles/76561198102256825?time=1444978800

Seller's BP after http://backpack.tf/profiles/76561198102256825?time=1445065200

idk what happened here

He isn't in the item history, cannot determine what it sold for, assuming 32 keys.

32 keys

Probably did something else wrong. If that's the case, someone else take this. My brain hurts.