Ressugesting given new info for some sales! Thanks to Icycrevasse for some help and Tyra & ABC for the extra info!

Item 1

https://backpack.tf/item/12883603298

Sale #1

Sold for 50 keys + a Spec KS Aussie Grenade Launcher (21ish keys, given a bunch of sales at 21 to back up this price) = 71 keys-

Seller: https://backpack.tf/profiles/76561198964510063#!/compare/1682380800/1683072000

Buyer: https://backpack.tf/profiles/76561198043739064#!/compare/1683417600/1683763200

Proof of sale: https://imgur.com/a/YQAFxz9

Item 2

https://backpack.tf/item/4501837056

Sale #2

Sold for 82 keys + 32 refined (too high to include here, excluding)-

Seller: https://backpack.tf/profiles/76561198453530349#!/compare/1680825600/1680912000

Buyer: https://backpack.tf/profiles/76561198072441047#!/compare/1681171200/1681257600

Proof of sale- https://imgur.com/a/so1mjuV

Sale #3

Sold for a Purple Energy Oktoberfester (unusable, no usable sales for the Oktoberfester)-

Seller: https://backpack.tf/profiles/76561198072441047#!/compare/1681171200/1681257600

Buyer: https://backpack.tf/profiles/76561198054270952#!/compare/1680998400/1681257600

Sale #4

Sold for a Scorching Flames Big Country (78 keys) + two TOD tickets (1 key) + a Strange FN Dressed to Kill Shotgun (judging from the price of the Shotgun and how much buyers are at , this sale is too high to be accounted for, seller in bp.tf has been at 82.4 keys for a while and there's also a young one at 78 keys)-

Seller: https://backpack.tf/profiles/76561198054270952#!/compare/1686873600/1686960000

Buyer: https://backpack.tf/profiles/76561198195420449#!/compare/1685059200/1687305600

Proof: https://imgur.com/a/Urvdx3a

Item 3

https://backpack.tf/item/13174099955

Sale #5

Bulk Sale:

Seller: https://backpack.tf/profiles/76561198115062041#!/compare/1687392000/1687478400

Buyer: https://backpack.tf/profiles/76561198126777328#!/compare/1687392000/1687478400

Sale #6

Sold for a Blizzardy Storm Tough Stuff Muffs (seems too low to use here, excluding)-

Seller: https://backpack.tf/profiles/76561198126777328#!/compare/1687392000/1687478400

Buyer: https://backpack.tf/profiles/76561198058954965#!/compare/1687392000/1687478400

Marketplace.tf Sale #1

Sold for $125 on May 12, 2023

Keys @ $2.03

125/2.03 = 61.58ish keys

Sales @ 62, 71

Taking 62-71