Resuggestion based on my previous suggestion: https://backpack.tf/suggestion/6234ab0db1fddf0dd1057f05#comment-62531d5a291b9f0ccd7db061

The only one that moved recently: https://backpack.tf/item/4073968751

Sale #1: 425 keys

https://backpack.tf/profiles/76561199032322140#!/compare/1645920000/1646006400

https://backpack.tf/profiles/76561197982127154#!/compare/1645920000/1646006400

Sale #2: part of a bulk deal

https://backpack.tf/profiles/76561197982127154#!/compare/1644883200/1644969600

https://backpack.tf/profiles/76561198398997592#!/compare/1644796800/1644969600

Sale #3:

https://backpack.tf/profiles/76561199032322140#!/compare/1647648000/1648684800

https://backpack.tf/profiles/76561198114930628#!/compare/1648339200/1648684800

https://imgur.com/FBRBz10

I used the latest sales for the skins, let me know if adjustments are needed:

StatTrak MP7 | Bloodsport (MW): 8.56 EUR

https://steamcommunity.com/market/listings/730/StatTrak%E2%84%A2%20MP7%20%7C%20Bloodsport%20%28Minimal%20Wear%29

AK-47 | Fire Serpent (BS): 401.32 EUR

https://steamcommunity.com/market/listings/730/AK-47%20%7C%20Fire%20Serpent%20%28Battle-Scarred%29

M4A1-S | Printstream (BS): 70.43 EUR

https://steamcommunity.com/market/listings/730/M4A1-S%20%7C%20Printstream%20%28Battle-Scarred%29

USP-S | Kill Confirmed (BS): 38.42 EUR

https://steamcommunity.com/market/listings/730/USP-S%20%7C%20Kill%20Confirmed%20%28Battle-Scarred%29

Total: 518.73 EUR = 518.73/2.07 = 250.59 keys

170 + 250 = 420 keys