I'll show you what I can do

Sale 1 & 2 & 3

https://marketplace.tf/items/614;5;u8

Sold for 50$ on the 12th December (1.65)

= 30.30 Keys, rounding to 30 Keys

Sold for 36.07$ on 14th December (Buy order)

Sold for 55.95$ on the 11th January (1.75)

= 31.97 Keys, rounding to 32 Keys

https://gyazo.com/2c7ba5e615498e3e2e9871a015f7ce4b

B/O was 34

Sale 4

https://backpack.tf/profiles/76561198865283993#!/compare/1544572800/1544659200

https://backpack.tf/profiles/76561198043936328#!/compare/1544486400/1544572800

untraceable

Sale 5

https://backpack.tf/profiles/76561198840748471#!/compare/1544486400/1544572800

https://backpack.tf/profiles/76561198865283993#!/compare/1544486400/1544572800

untraceable

Sale 6

https://backpack.tf/profiles/76561198179253523#!/compare/1544486400/1544572800

https://backpack.tf/profiles/76561198840748471#!/compare/1544486400/1544572800

untraceable (was probably the one quicksold on mp.tf)

Sale 7

https://backpack.tf/profiles/76561198079291517#!/compare/1544054400/1544400000

https://backpack.tf/profiles/76561198179253523#!/compare/1543968000/1544140800

untraceable, probably got gambled

Sales: 30, 32

Taking a range

That's it and that's all.