Last sugg on this accepted a month ago, but used sales from november.

Sale 1-4:

https://marketplace.tf/items/tf2/30761;5;u3024

$15 / $1.78 = 8.43 keys

$11 / $1.75 = 6.29 keys

$19.99 / $1.77 = 11.29 keys // b/o 11 keys https://imgur.com/a/dDghfjH // https://backpack.tf/item/8212029903

$19.99 / $1.68 = 11.90 keys

https://backpack.tf/item/6436811718

Sale 5:

untrace

https://backpack.tf/profiles/76561198352738720#!/compare/1580515200/1580860800

https://backpack.tf/profiles/76561199017444584#!/compare/1580515200/1580688000

Sale 6:

aussie KS sticky (13.5)

b/o 17: https://imgur.com/a/Mjmeoej

https://backpack.tf/profiles/76561198418740133#!/compare/1583884800/1583971200

https://backpack.tf/profiles/76561198182234714#!/compare/1583884800/1583971200

sticky: https://imgur.com/a/CyZvQhk

Sale 7:

untrace

https://backpack.tf/profiles/76561198182234714#!/compare/1584921600/1585008000

https://backpack.tf/profiles/76561198113899098#!/compare/1584921600/1585008000

Sale 8:

untrace

https://backpack.tf/profiles/76561198069643190#!/compare/1580860800/1583020800

https://backpack.tf/profiles/76561198040186479#!/compare/1581379200/1581465600

Sale 9:

bulk but probs mp sale

https://backpack.tf/profiles/76561198402240423#!/compare/1582502400/1582675200

https://backpack.tf/profiles/76561198040186479#!/compare/1581379200/1581465600

Sale 10:

using on blast defense

https://backpack.tf/profiles/76561198402240423#!/compare/1582934400/1583020800

https://backpack.tf/profiles/76561198838788284#!/compare/1582761600/1583020800

Sale 11:

shark or something missing

https://backpack.tf/profiles/76561198838788284#!/compare/1583539200/1583625600

https://backpack.tf/profiles/76561198289838885#!/compare/1583539200/1584576000

==============================================================================

Sales:

6.5,8.5,11,12,14

buyers at 9.5 keys only yesterday: https://imgur.com/a/61rSY7P