Including sales over 30 days old, as the sales in the last 30 days aren’t gonna cut it.

0-30 days old:

Sales 1 & 2:

Sold for $49.99 and $50 on Marketplace.tf

https://marketplace.tf/items/1112;5;u3005

https://backpack.tf/item/2770790758

https://backpack.tf/item/2884589330 one of these two histories are the one from the 21st of December, not sure about the one that occurred on the 26th.

49.99/1.9 = ~26.3

50/2.02 = ~24.8

X = 25 & 26

Sale 3:

Sold for 14 keys in ~1-2 days

Seller: https://backpack.tf/profiles/76561198344933095#!/compare/1515283200/1515369600

Buyer: https://backpack.tf/profiles/76561198293915597#!/compare/1515283200/1515369600

X = 14

30-60 days old:

Sale 4:

Sold for Neutron Star Fruit Shoot (Suggestion at 23.5)

http://www.tf2outpost.com/trade/29449786 - No B/O

Seller: https://backpack.tf/profiles/76561198232885972#!/compare/1511395200/1511481600

Buyer: https://backpack.tf/profiles/76561198286234945#!/compare/1511395200/1511481600

X = 24

Sale 5:

Sold for Max’s Head (~19 at the time)

No outpost

Seller: https://backpack.tf/profiles/76561198241780530#!/compare/1511654400/1511740800

Buyer: https://backpack.tf/profiles/76561198073973581#!/compare/1511654400/1511740800

X = 19

Sale 6:

Sold for 17 keys

Seller: https://backpack.tf/profiles/76561198286234945#!/compare/1511568000/1511654400

Buyer: https://backpack.tf/profiles/76561198179285485#!/compare/1511568000/1511654400

X = 17

Sale 7:

Bulk for pan

Seller: https://backpack.tf/profiles/76561197966756586#!/compare/1511654400/1511740800

Buyer: https://backpack.tf/profiles/76561198076641199#!/compare/1509926400/1511740800

Sale 8:

Bulk for Stormy Storm DCO

Seller: https://backpack.tf/profiles/76561198192647686#!/compare/1512691200/1512777600

Buyer: https://backpack.tf/profiles/76561198019257028#!/compare/1512691200/1512777600

Sale 9:

Bulk for Miami Nights Law

Seller: https://backpack.tf/profiles/76561198019257028#!/compare/1512691200/1512777600

Buyer: https://backpack.tf/profiles/76561198105928603#!/compare/1512259200/1512777600

Sale 10:

Sold for Cool Factory New Blitzkrieg Stickybomb Launcher

Seller: https://backpack.tf/profiles/76561198179285485#!/compare/1511568000/1511654400

Buyer: https://backpack.tf/profiles/76561198241780530#!/compare/1511568000/1511654400

no

Neutron Star Fruit Shoot:

https://backpack.tf/suggestion/5a5a05ddcf6c7563bb1b0e1e

Sellers:

16 keys:

https://i.imgur.com/wZ0DQxG.png - young

https://i.imgur.com/kxtGHic.png - 4 days

17 keys:

https://i.imgur.com/axbXIwX.png - 7 days

20 keys:

https://i.imgur.com/fZIctJq.png - 2 days

27 keys:

https://i.imgur.com/QvXezgn.png - 20 days

40 keys:

https://i.imgur.com/h6reniP.png - 7 days

https://i.imgur.com/MWmbJuC.png - 29 days

55 keys:

https://i.imgur.com/6OtfqFp.png - 2 months

60 keys:

https://i.imgur.com/r6NsIDw.png - 2 months

Steam Community Market Sellers:

http://steamcommunity.com/market/listings/440/Unusual%20Taunt%3A%20Party%20Trick?filter=fountain

https://i.imgur.com/5ZzobVW.png

$39.10 9 ~16 keys

$45 (2x) ~18 keys

$88.98 ~36 keys

$101.44 ~41 keys

Sales at:

14

17

19

24

25

26

14 quicksold, excluding 24.

Given that there are 4 sellers for up to 35% less than the sales at 24-26, I’d say that the sales at 24-26 should be excluded as outliers.

Sellers at 16, should be used to set the low-end.

Going with 16-19.

The second seller at 16 keys sold for 16 keys:

Seller: https://backpack.tf/profiles/76561198061440669#!/compare/1515801600/1515888000

Buyer: https://backpack.tf/profiles/76561198055747230#!/compare/1515801600/1515888000

X = 16

The seller at 17 looks to have sold for 17 keys too:

Seller: https://backpack.tf/profiles/76561198002757046#!/compare/1515801600/1515888000

Buyer: https://backpack.tf/profiles/76561198029357944#!/compare/1515715200/1515974400

Can't confirm that it sold for that though.

Also i realise an error i made in the conclusion part of my original post:

"14 quicksold, excluding 24." that's obviously meant to be "excluding 14", not 24.

Bulk for Green Energy Deep Cover Operator

Seller: https://backpack.tf/profiles/76561198139229580#!/compare/1516320000/1516406400

Buyer: https://backpack.tf/profiles/76561198085269574#!/compare/1516320000/1516406400

Looks like on of the ones listed for $45 on the SCM sold on Jan 17th, and the seller at $39.10 seems to have sold, or removed their listing.