Sold for $6300 on Sep 1:

https://cdn.discordapp.com/attachments/663470232731648030/883052305811902485/twarp_polar_proof.png

https://backpack.tf/profiles/76561197974225531#!/compare/1630195200/1630454400

https://backpack.tf/profiles/76561198026744290#!/compare/1630368000/1630454400

Paypal key prices from Aug 29 to today:

Aug 29

https://forums.backpack.tf/topic/78962-buying-tf2-keys-at-158-each/ - $1.58 (shown by rep left here by SonderCycle: https://backpack.tf/trust/76561198318065526)

Aug 30

https://forums.backpack.tf/topic/78488-buying-keys-for-161-paypal/ - $1.61 (shown by rep left here by Benji: https://backpack.tf/trust/76561198306145097)

Aug 31

https://backpack.tf/trust/76561198061836787 - $1.55

https://backpack.tf/trust/76561198128838220 - $1.56

https://forums.backpack.tf/topic/78131-wtb-tf2-keys-and-backpacks-158-each-paypal-i-cover-all-fees-150-crypto-usdcusdt-200-rep-%E2%9C%94%EF%B8%8F/ - $1.58 (shown by rep left here by fat gorilla: https://backpack.tf/trust/76561198060299122)

Sep 1

https://forums.backpack.tf/topic/76871-buying-keys-158-each-buying-special-keys-ref-tools-backpacks-paypal/ - $1.58 (shown by rep left here by PolishNope: https://backpack.tf/trust/76561198031258757)

Sep 2

https://forums.backpack.tf/topic/79025-sold/ - $1.65 (shown by rep left here by Buck Rampant: https://backpack.tf/trust/76561198325595749 )

https://forums.backpack.tf/topic/79030-sold/ - $1.66 (shown by rep left here by TripleMasterA: https://backpack.tf/trust/76561198325595749 )

https://backpack.tf/trust/76561198128838220 - $1.56

https://backpack.tf/trust/76561198091502579 - $1.59

https://forums.backpack.tf/topic/78361-%F0%9F%90%B6-buying-keys-158-tod-71-max-45-backpacks-more-via-cashapp-220-rep-no-paypal-bork/ - $1.58 (shown by rep left here by Kaiga: https://backpack.tf/trust/76561198068732040)

Sep 3

https://forums.backpack.tf/topic/77499-selling-keys-for-164-usd-tour-of-duty-083-paypalwise-3000-keys-stock-100-trusts/ - $1.64 (shown by rep left here by soothingbell: https://backpack.tf/trust/76561198056793885)

Key sales at $1.55, $1.56, $1.56, $1.58, $1.58, $1.58, $1.58, $1.59, $1.61, $1.64, $1.65, $1.66 - average comes out to $1.595

$6300/$1.595 = 3949.84326019

Rounding to 3950 flat