Following Shuffle Spy's amazing advice (thanks man) I remade this suggestion to be more accurate.

Using bot.tf Sale Data (https://imgur.com/a/adqMiGn ; provided by Shuffle Spy)

Suggested Pricing by bot.tf 2.07 Sell Order and 1.16 Buy Order

Converted to keys only

2.74(2) + 2.72 + 2.02 (High, AKA Sell Order Sales)

1.86(3) + 1.93(3) + 1.86(2) + 1.86 + 1.29 (Low, AKA Buy Order Sales)

(the parenthesis used is for how many were sold at that price, I know there are still dupes buts its cuz the sale price is different by one scrap so it's different but still 1.86 according to calculator.tf)

Avg. of Sales in Bot.tf:

2.56 (High)

1.82 (Low)

taking marketplace.tf sales (https://imgur.com/a/Reop6Ou) and converting them to keys (I used active buy order of $1.80 per key)

2.72 + 2.7 + 0.27 + 4.4 + 3.08(2) + 3.3 + 3.05 + 3.85 + 0.55 + 1.22 + 2.92 + 3.02(2) + 2.87

Avg. Sales: 2.67 Keys

SCM Sales (https://imgur.com/a/Q0ZA7Cq) (Yeah I know this ain't good for this kind of thing, just using it as supplementary information)

Most are around 5 dollars with some above and below, and Mann co keys (https://imgur.com/a/jDlC7Rv) are selling for $2.41.

Since bot.tf's sales are consistent/similar to marketplace.tf sales, SCM sales, and with backpack.tf sell and buy orders, I am going to use bot.tf to price the hat

Rounded to 1.8-2.55 Keys for pricing range!