Taking last 2 months (July 23 on)

Sale 1:

https://backpack.tf/profiles/76561198061786462#!/compare/1568764800/1568851200

https://backpack.tf/profiles/76561198205939253#!/compare/1568678400/1568764800

https://backpack.tf/profiles/76561198061786462#!/compare/1568764800/1568851200

Tradeback

Sale 2:

https://backpack.tf/profiles/76561198099463897#!/compare/1566691200/1566777600

https://backpack.tf/profiles/76561198025043861#!/compare/1563840000/1567555200

Not unusual

Sale 3:

https://backpack.tf/profiles/76561198061108167#!/compare/1562112000/1565827200

https://backpack.tf/profiles/76561198048313541#!/compare/1565740800/1565827200

Sold for 17 keys

Sale 4:

https://backpack.tf/profiles/76561198048313541#!/compare/1566000000/1566086400

https://backpack.tf/profiles/76561198057436685#!/compare/1566172800/1566259200

Untrace

Sale 5:

https://backpack.tf/profiles/76561198294418752#!/compare/1565049600/1566086400

https://backpack.tf/profiles/76561198928452311#!/compare/1565913600/1566000000

https://backpack.tf/profiles/76561198880281227#!/compare/1566000000/1566086400

https://backpack.tf/profiles/76561198074551673#!/compare/1566086400/1566259200

not unususal till final compare

Sale 6:

https://backpack.tf/profiles/76561198140125116#!/compare/1564272000/1564358400

https://backpack.tf/profiles/76561198116549961#!/compare/1564012800/1564444800

Bulk

Sale 7:

https://backpack.tf/profiles/76561198116549961#!/compare/1567468800/1567555200

https://backpack.tf/profiles/76561198066256810#!/compare/1567468800/1567555200

Sold for 13 keys

Sale 8:

https://backpack.tf/profiles/76561198340634356#!/compare/1567641600/1567728000

https://backpack.tf/profiles/76561198031126990#!/compare/1567641600/1567728000

Sold for 21 keys

Sale 9:

https://backpack.tf/item/3948136555

not unusual till the last comapre, SCM:

https://backpack.tf/profiles/76561198015023603#!/compare/1566432000/1566864000

Sale 10:

https://backpack.tf/profiles/76561198067679367#!/compare/1563926400/1564012800

https://backpack.tf/profiles/76561198323217150#!/compare/1552262400/1566000000

Doesn't leave unusual

Sale 11:

https://backpack.tf/profiles/76561198851349857#!/compare/1564963200/1565136000

https://backpack.tf/profiles/76561198418740133#!/compare/1565049600/1565136000

Sold for C9 Stash

Sale 12:

https://backpack.tf/profiles/76561198973894950#!/compare/1565136000/1565222400

https://backpack.tf/profiles/76561198205939253#!/compare/1565136000/1565222400

https://backpack.tf/profiles/76561198329023090#!/compare/1565136000/1565222400

https://backpack.tf/profiles/76561198205939253#!/compare/1565136000/1565222400

https://backpack.tf/profiles/76561198063536945#!/compare/1565222400/1565308800

Gambling?

Sale 13:

https://backpack.tf/profiles/76561198063536945#!/compare/1565913600/1566000000

https://backpack.tf/profiles/76561198870453692#!/compare/1565827200/1566000000

https://backpack.tf/profiles/76561198340634356#!/compare/1565913600/1566000000

Untrace / QS

sale 14:

https://backpack.tf/profiles/76561198340634356#!/compare/1567641600/1567728000

https://backpack.tf/profiles/76561198131478921#!/compare/1567728000/1568851200

Sold for 21 keys

sale 15 - 23:

https://marketplace.tf/items/tf2/1118;5;u3005

$42 / $1.81 = 23.20 keys <-- https://backpack.tf/item/2740272916

$31.09 / $1.84 = 16.90 keys

$39 / $1.84 = 21.20 keys

$30.11 / $1.82 = 16.54 keys

$45.47 / $1.82 = 24.98 keys

$47 / $1.82 = 25.82 keys <-- https://backpack.tf/item/7013635122 | https://bot.tf/stats/listings/Y9GLNEDD B/O of 22 keys, capping

$47 / $1.82 = 25.82 keys

$30.11 / $1.81 = 16.64 keys <-- https://backpack.tf/item/6514234295

$49.99 / $1.82 = 27.47 keys

Bot.tf:

https://bot.tf/stats/item?def=1118&q=5&ef=Fountain%20of%20Delight&craft=1&aus=0&ks=0&source=browser_script

2 sales @ 21 keys,

3 sales @ ~15 keys

Total sales @:

13

15

15 (x2)

17 (x4)

21 (x3)

22

23

25

26

27

buyers up to ~16 keys,

seller for 25 keys unsold for 3 months,

seller for 20 keys is poorly bumped,

seller for 21 keys unsold for 2 weeks,

https://i.imgur.com/Niu3dWW.png

Calling 15 low,

gonna take 17 - 25 keys, conserving around unsold.