Let's dive into this, many thanks Jarool.

Sale 2:
https://backpack.tf/profiles/76561198125791160#!/compare/1710720000/1710806400
https://backpack.tf/profiles/76561198164814063#!/compare/1710720000/1710806400
Sold for:
Disco Beat Down Frag Proof Fragger - https://backpack.tf/suggestion/66182fd499d3254302048a56 - 71.5 keys
Head of Steam Murderer's Motif - https://backpack.tf/suggestion/663c4d28fb287d84a50ea999 - 23 keys
Vivid Plasma Second-Head Headwear - https://backpack.tf/suggestion/661d2b0d0563eaf6ae08b9e4 - 16 keys
Sunbeams Ludicrously Lunatic Lunon Fedora - https://pastebin.com/VDcSW7V7 - 50 keys as a mini
Scorching Flames Bullet Buzz - https://backpack.tf/suggestion/66eeb879692d654b64070aa0 - 99 keys
Festive Falling Star Antarctic Eyewear - https://backpack.tf/suggestion/663c4eaef8fc56d82b01b263 - 27 keys
Non-Craftable Unusual Taunt: The Road Rager Unusualifier - https://backpack.tf/suggestion/65a82f633df6ed4eb40ed9ba - 8.25 keys indate at the time
Non-Craftable Unusual Taunt: Mannrobics Unusualifier - https://backpack.tf/suggestion/660868305406fa1363072de6 - 19 keys
Vivid Plasma Pirate Bandana - https://backpack.tf/suggestion/663c4f38adb08a71a70db37a - 29 keys
Scorching Flames Bolted Bicorne - https://backpack.tf/suggestion/66f1eb3b6e8811ba500c07d0 - 90 keyhs
Cloud 9 Impact Impaler - https://backpack.tf/suggestion/662c95d467ab86ad6806e182 - 18 keys
North Star Brain-Warming Wear - https://backpack.tf/suggestion/660944e9d26c37022c06a1af - 17.5 keys
Non-Craftable Unusual Taunt: The Hot Wheeler Unusualifier - https://prnt.sc/uiTq0YXdHqpZ - sellers at 6 keys, buyers at 5 keys

Maths:
71.5 + 23 + 16 + 50 + 99 + 27 + 8.25 + 19 + 29 + 90 + 18 + 17.5 + 5 = 473.25 keys

Taking as 470 keys

Sale 3:
LGTM, ty for the work

Sale 4:
#1
DBD TC - https://backpack.tf/suggestion/66d8118a185211ebd006974d - 355 keys according to this one, seems fine
Dead Presidents Rotation - https://prnt.sc/ovSRVSnKhGPf - sellers at 35 keys, buyers at 30.5 keys
Magnetic Hat Protector Phononaut - https://prnt.sc/ufdNUye-5czM - seller at 28 keys, buyers at 23.88 keys
Psycho-delic Tropical Brim - https://gladiator.tf/sales?item=Psycho-delic%20Tropical%20Brim&at=2024-09-23T22:38:39.634Z - sales at 35 keys and 65 keys, what if big range for lazy lazy mini

355 + 30.5 + 23.88 + 50 = 459.38

460 keys um but I've been lazy with the rotation and the phononaut!!1

#2
I do not want to look at that ty and np
==============================================================================================================
Demonic Impaler Antarctic Eyewear
https://backpack.tf/profiles/76561199480240111#!/compare/1721692800/1721779200

Sold for:
Purple Confetti Starlight Sorcerer - 28 key buyers
Starlight Haze Soda Cap - 39 key buyers
2x Strange Plaid Potshotter Mk.II War Paint (Factory New) - 8 keys
1x Strange Forest Fire Mk.II War Paint (Minimal Wear) - 12 keys

28 + 39 + 8 + 12 = 87 keys
==============================================================================================================
460 + 87 = 547 keys so fits in the range for sure

So sales are now:
470
Ooze Field Practice + adds = >500 keys
550
560
700

hmmmmmm

470 - 700 key I guess

585 middle point