tbh this should be lower

Sale 1

http://www.tf2outpost.com/trade/27612503 Sold for 15 keys

B/O for Bonk was 15

X = 15

Keys http://backpack.tf/profiles/76561198058423401?time=1452067200&compare=1452326400

Bonk http://backpack.tf/item/1705388738

Histories don't match but since the B/O was 15 and 15 keys entered the backpack 3 days after the hat sold...

Sale 2

http://backpack.tf/profiles/76561198129922235?time=1450944000&compare=1450857600 6 keys

Sale 3

http://backpack.tf/profiles/76561198098141661?time=1449907200&compare=1449820800 Sold for 19 keys of stuff, that's high

Sale 4

http://backpack.tf/profiles/76561198105033736?time=1453449600&compare=1453622400 Bulk for Lantern Drill

Sale 5 OUTLIER

[No OP Trade] Sold for Planets Dogger

X = 12

Dogger http://backpack.tf/item/1618553117

Bonk http://backpack.tf/item/1746633882

Trade http://backpack.tf/profiles/76561198175913658?time=1453017600&compare=1453708800

Sale 6

http://www.tf2outpost.com/trade/27533596 Sold for Smoking Batter's + 2 keys

Batter's had no trade

X = 14.5 + 2

X = 17

Batter's http://backpack.tf/item/808089220

Bonk http://backpack.tf/item/1746633882

Trade http://backpack.tf/profiles/76561198137643329?time=1449302400&compare=1449388800

Sale 7

http://www.tf2outpost.com/trade/27683275 Sold for 15 keys

B/O for Bonk was 15

X = 15

Keys http://backpack.tf/profiles/76561197970684440?time=1453190400&compare=1453276800

Bonk http://backpack.tf/item/3577919308

Sale 8

http://backpack.tf/profiles/76561198068747212?time=1452326400&compare=1452240000 Bulk for Harvest Private