when you have 25 sales and the only ones you're using are so far apart, I want to urge you to spend a little more time on trying to figure out sales, because a lot of them are wrong or incorrectly labeled untraceable. A part of this is because you link the wrong compares quite often.

Sales 1 through 11 are all gambling, and sale 12 is the final person in the chain selling it to a buyer.

Sale 13 is traceable and is 16 keys:

https://backpack.tf/profiles/76561199085116273#!/compare/1639353600/1639440000 ( key batch with this one https://backpack.tf/item/10978838198 )

Sale 15 sold for ~15

https://gladiator.tf/listings/61b88d1ba0b009f245c2e8a0 it sold to the second buyer in the list

Sale 16 Im not completely sure what happened, may actually also have been gambling involved, but it likely sold for more than just the trash; presumably something else that was either gambled away or traded for this p.fetti tundra which was then resold for the keys you see in the compare

https://backpack.tf/item/7129544668

it matches with the keys, and the fact that it goes through the same few accounts make me think either this or whatever else was exchanged was likely gambled

Sale 17 is actually 16 keys + some ref, you have the wrong compare there; the one you actually need is the one you used in the sale before

https://backpack.tf/profiles/76561198199465911#!/compare/1635897600/1635984000

The 16 keys and the ref that match in IDs were the sale (example https://backpack.tf/item/8011504084 )

Sale 18 uses the wrong compare for the buyer:

https://backpack.tf/profiles/76561199085116273#!/compare/1636502400/1636588800

I still cant trace it, though

Sale 19; I dont know where you got 10 keys, but the only 10 key batch in the sellers compare does not match on any key. Since nothing disappeared its probable that they either used store credit or bought keys they then used to buy the hat with. They've shown to have sold for 16 keys earlier so this sale is likely around the same value (possibly the 15 key batch, which also does not match), but if anything, this one should've been labeled untraceable

Sale 20: he added 3 keys for that globetrotter ( https://backpack.tf/item/8707099511 ), which is actually fairly clear from the second compare. The globe was resold for 15 (the 15 keys shown in the first compare)

Sale 21 sold for keys/ref, some of them already match, the rest was used to buy that logo blitzen. I could find out through the stats page on that one how much that was sold for, and then see how many of the other keys that leave his bp were also spent on that to figure out what it was exactly, but its guaranteed to fit the range here

Sale 23 sold with 17 keys for a PE metaltower which was then involved in obtaining that glengarry

https://backpack.tf/item/10615779694

https://backpack.tf/profiles/76561198204534945#!/compare/1637366400/1637452800

https://backpack.tf/profiles/76561198445317265#!/compare/1637366400/1637452800

https://backpack.tf/profiles/76561198257082566#!/compare/1637366400/1637452800

Sale 24 misses the aurora borealis truck ( https://backpack.tf/item/9538634754 ) so that's much less than 23

Sale 25 is bulk for that pumpkin batter (which is also really clear from both compares)

So this isnt going to work, and will have to be completely re-assessed with the current market if you want to update it.