Sale 1, 39.95$ on marketplace 3/6/20, keys were 1.71, meaning this trade equals 23.3, rounding down to 23.

Sale 2, Unknown

Entering buyer: https://backpack.tf/profiles/76561198311498888#!/compare/1579305600/1579392000

Exiting Seller: https://backpack.tf/profiles/76561198337734785#!/compare/1578355200/1578441600

Sale 3, unknown

Entering buyer: https://backpack.tf/profiles/76561198861835216#!/compare/1580256000/1582156800

Exiting Seller: https://backpack.tf/profiles/76561198311498888#!/compare/1580688000/1580774400

Sale 4, 40$ on marketplace, 12/26/20, keys were 1.78, equalling 22.4, rounding to 22

Key prices: https://marketplace.tf/items/tf2/5021;6

Scuffed, let me know if you can find what sales 2 and 3 were, and ill update it accordingly.

Histories for mplace deals:

https://backpack.tf/item/8018313139

and (i think) https://backpack.tf/item/8131878032