1. More sales:

Sale #1)

Bulk:

https://backpack.tf/profiles/76561198453530349#!/compare/1634947200/1635033600

https://backpack.tf/profiles/76561198091502579#!/compare/1634947200/1635033600

Sale #2)

Bulk:

https://backpack.tf/profiles/76561198059809217#!/compare/1634256000/1637712000

https://backpack.tf/profiles/76561197966756586#!/compare/1637625600/1637712000

Sale #3)

Untrace:

https://backpack.tf/profiles/76561199110809353#!/compare/1633996800/1634083200

https://backpack.tf/profiles/76561198204688320#!/compare/1633564800/1634169600

Only a few keys match, could be 73, but not sure.

Sale #4)

Untrace:

https://backpack.tf/profiles/76561199111073161#!/compare/1637452800/1637539200

https://backpack.tf/profiles/76561198112544361#!/compare/1637539200/1637884800

Sale #5)

Sold for duped Green Energy Vintage Tyrolean + spelled The Nine-Pipe Problem:

https://backpack.tf/profiles/76561198112544361#!/compare/1637884800/1638748800

https://backpack.tf/profiles/76561198850178158#!/compare/1637798400/1637884800

Outlier, I'd exclude.

Even though those sales change nothing, it is nice to include them.

2. Rounding. This should be 73 flat, as 30 ref is below half of the key price.

for unusuals above 10 keys please round to the nearest whole key therefore this should be 73 flat. please re-suggest accordingly as The Blue Fox already mentioned