https://backpack.tf/item/11077048441

https://backpack.tf/profiles/76561198094220056#!/compare/1646179200/1646611200

https://backpack.tf/profiles/76561198285385979#!/compare/1646524800/1646611200

55 keys

https://backpack.tf/profiles/76561198285385979#!/compare/1646870400/1647043200

https://backpack.tf/profiles/76561198094818081#!/compare/1646956800/1647043200

https://gladiator.tf/listings/622c01431837d29e50b0bd3b

52 keys match from Triple, looks to be the buy order from their bot

https://marketplace.tf/items/tf2/31216;5;u218

https://manic.tf/keyprice/?at=2022-05-22&price=114.99

$114.99 / $1.77 = 64.97 keys

https://backpack.tf/item/11009410222

https://backpack.tf/profiles/76561198086337645#!/compare/1648771200/1649116800

https://backpack.tf/profiles/76561198043566764#!/compare/1648944000/1649116800

https://gladiator.tf/listings/624b7d9f2a83ad4edc93a707

60 keys

https://backpack.tf/item/11078532278

https://backpack.tf/profiles/76561198326254870#!/compare/1646784000/1646870400

https://backpack.tf/profiles/76561199111664710#!/compare/1646784000/1646870400

https://gladiator.tf/listings/6229477b0693183b6a4dfc77 https://gladiator.tf/sales?item=Polar%20Forecast%20Hat%20Outta%20Hell&at=2022-03-10T09:13:06.405Z

Most likely ~53 key buy order

https://backpack.tf/profiles/76561199111664710#!/compare/1647043200/1647129600

https://backpack.tf/profiles/76561199187383421#!/compare/1647043200/1647129600

https://gladiator.tf/sales?item=Polar%20Forecast%20Hat%20Outta%20Hell&at=2022-03-14T09:13:06.405Z

Dumped again, probably 52 keys

https://backpack.tf/profiles/76561199187383421#!/compare/1647129600/1647216000

https://backpack.tf/profiles/76561199199711319#!/compare/1647216000/1647302400

https://gladiator.tf/sales?item=Polar%20Forecast%20Hat%20Outta%20Hell&at=2022-03-15T09:13:06.405Z

Dumped again, probably ~53 keys

https://backpack.tf/profiles/76561199199711319#!/compare/1647734400/1647820800

https://backpack.tf/profiles/76561198115179017#!/compare/1647648000/1647993600

https://gladiator.tf/listings/62366f7e1b295c0ce9946f19

65 keys

https://mannco.store/item/440-polar-forecast-unusual-hat-outta-hell

Two listed at $129.99

https://backpack.tf/item/11100068404

https://backpack.tf/profiles/76561198126954788#!/compare/1646265600/1646611200

https://backpack.tf/profiles/76561198850121720#!/compare/1646265600/1646611200

Looks to have been dumped to QS.store, ~35 keys match, low

https://backpack.tf/profiles/76561198850121720#!/compare/1647129600/1647216000

https://backpack.tf/profiles/76561198159317851#!/compare/1647043200/1647216000

https://gladiator.tf/listings/622f6c898a237e183e20ee67

Probably ~54 keys

https://backpack.tf/profiles/76561198159317851#!/compare/1650326400/1650412800

https://backpack.tf/profiles/76561198278736964#!/compare/1650326400/1650412800

Added 4 keys for Gift-Wrapped Non-Tradable Unusual Haunted Metal Scrap, not using

https://backpack.tf/profiles/76561198278736964#!/compare/1650499200/1650585600

https://backpack.tf/profiles/76561198855892118#!/compare/1650412800/1650585600

https://gladiator.tf/listings/6261ea701cda146880646d89

65 keys

Credits to Mindacos:

Looking at the buyers, all of the sales in this current suggestion will be outliers. Which is fine since we have new sales:

Sold for 69 Keys

https://backpack.tf/profiles/76561198043566764#!/compare/1658016000/1658102400

Sold for 77 Keys

https://backpack.tf/profiles/76561198049121113#!/compare/1655164800/1655856000

https://backpack.tf/profiles/76561198240599376#!/compare/1655769600/1655856000

https://gladiator.tf/time-machine?item=Polar%20Forecast%20Hat%20Outta%20Hell&at=2022-06-22T15:14:37.000Z

Sold for 79 Keys

https://backpack.tf/profiles/76561198240599376#!/compare/1658016000/1658188800

Even though 69 is the current price for buyers, I feel it's offset by all the other sales you provided in this suggestion. 69-79 should be fine here.