Ya sure?

Sales

Sale 1: Sold for 30 keys

https://backpack.tf/profiles/76561198061489334#!/compare/1600646400/1600732800

https://bot.tf/stats/listings/Y79P7P2N

Sale 2: Sold for 25 keys

https://backpack.tf/profiles/76561198872796421#!/compare/1597622400/1597708800

https://backpack.tf/profiles/76561198354781811#!/compare/1597622400/1597708800

Sale 3: Looks bulky

https://backpack.tf/profiles/76561198026456960#!/compare/1596412800/1596499200

https://backpack.tf/profiles/76561198872796421#!/compare/1596326400/1596412800

Marketplace

https://marketplace.tf/items/tf2/30109;5;u62

July

$49.99 on July 30 (49.99/1.92 = 26~)

https://manic.tf/keyprice/?at=2020-07-30

August

$49.49 on August 1 (49.49/1.91 = 26~)

https://manic.tf/keyprice/?at=2020-08-01

49.49 on August 19 (49.49/1.79 = 28~)

https://manic.tf/keyprice/?at=2020-08-19

https://backpack.tf/item/7956418970

49.49 on August 28 (49.49/1.85 = 27~)

https://manic.tf/keyprice/?at=2020-08-28

September

$37.5 on September 7 (37.5/1.83 = 20~)

https://manic.tf/keyprice/?at=2020-09-07

45.55 on September 14 (45.55/1.85 = 25~)

https://marketplace.tf/items/tf2/5021;6

https://manic.tf/keyprice/?at=2020-09-14

MPTF Seller at $47.99 for 12 days (47.99 / 1.84 = 26~)

https://gyazo.com/b54e571d988883ba697b2ce215403862\

Classifieds

https://gyazo.com/dd77958e72f3a841445b1a2899b39ed3

Summary

Sales at 25 and 30.

Marketplace sales at 20, 25, 26, 26, 27, and 28.

Conclusion

Excluding 20 due to buyers at higher.

While there is a seller at 26~ on marketplace, there are 3 sales at higher, one of which being pure. Going to include the sales at higher since it's only 1 seller at less, and this would get a raise regardless.

Going with 25-30 here as the rest of the sales are in close proximity.