Sale 1:

No valid sale

https://backpack.tf/profiles/76561197980575212#!/compare/1664409600/1665619200

https://backpack.tf/profiles/76561198046960638#!/compare/1664236800/1665792000

Sale 2:

Untrace

https://backpack.tf/profiles/76561199183171982#!/compare/1670198400/1670284800

https://backpack.tf/profiles/76561198046960638#!/compare/1670198400/1670284800

Sale 3:

No valid sale

https://backpack.tf/profiles/76561199183171982#!/compare/1670198400/1670284800

https://backpack.tf/profiles/76561198091502579#!/compare/1670112000/1670457600

Sale 4:

No valid sale

https://backpack.tf/profiles/76561198100430869#!/compare/1667865600/1670371200

https://backpack.tf/profiles/76561198401416902#!/compare/1667520000/1668988800

Sale 5:

No valid sale

https://backpack.tf/profiles/76561198083387493#!/compare/1665532800/1665792000

https://backpack.tf/profiles/76561199218231854#!/compare/1665100800/1665705600

Sale 6:

No valid sale

https://backpack.tf/profiles/76561199218231854#!/compare/1668038400/1668124800

https://backpack.tf/profiles/76561198427636825#!/compare/1668038400/1668124800

Sale 7:

No valid sale

https://backpack.tf/profiles/76561199072654974#!/compare/1668211200/1668297600

https://backpack.tf/profiles/76561198146530755#!/compare/1668211200/1668297600

Sale 8:

Sold a Prismatic Haze Taunt: Kazotsky Kick for a Burning Flames Climbing Commander+5k+Non-Craftable Killstreak Kritzkrieg Kit

https://backpack.tf/profiles/76561198146530755#!/compare/1668902400/1669334400

https://backpack.tf/profiles/76561199219758482#!/compare/1668816000/1668902400

Sale 9

Untrace

https://backpack.tf/profiles/76561198802411333#!/compare/1665619200/1665964800

https://backpack.tf/profiles/76561199111073161#!/compare/1665532800/1665619200

Sale 10:

No valid sale

https://backpack.tf/profiles/76561199111073161#!/compare/1666137600/1666224000

https://backpack.tf/profiles/76561198373174675#!/compare/1665446400/1667088000

Sale 11:

Looks like sold for 87k

https://backpack.tf/profiles/76561198850121720#!/compare/1667433600/1667520000

https://backpack.tf/profiles/76561199092611789#!/compare/1667260800/1667606400

Sale 12:

Sold for 67k

https://backpack.tf/profiles/76561198989179031#!/compare/1671408000/1671494400

https://backpack.tf/profiles/76561199110809353#!/compare/1671408000/1671494400

https://prnt.sc/04pXu5W-LCOy

Sale 13:

Sold for 179.99$ on marketplace in Oct 2

https://marketplace.tf/items/tf2/31025;5;u13

179.99/1.95=92k

Sale 14:

Sold for 105$ on marketplace in Oct 17

https://marketplace.tf/items/tf2/31025;5;u13

105/1.99=53k(excluding)

New sale:

https://backpack.tf/profiles/76561198850274253#!/compare/1678233600/1678320000

https://backpack.tf/profiles/76561198087658501#!/compare/1678320000/1678406400 - Sold for 117 keys

This should be 67 - 117