using past 2 months

not using duped sales

not using sales in which hats went to bot.tf bots

marketplace.tf

https://marketplace.tf/items/617;5;u30

2 sales at 47, sale at 35 and 40

https://backpack.tf/item/884402131

47 usd sale

key price was 1.97

47/1.97=23.8, rounding to 24

40 usd sale

https://backpack.tf/item/575721813

keys was 1.97

40/1.97=20.3, rounding to 20

47 usd sale

https://backpack.tf/item/6281045391

keys was 1.95 atm

47/1.95=24.1, rounding to 24

no history for 35 usd sale

using current keyprice

1.94

35/1.94=18

countered by buyers

bot.tf sales

using past month

https://imgur.com/a/xajWNn8

19 keys 23 refs - https://backpack.tf/profiles/76561198304138933#!/compare/1526680800/1526767200

19 keys 24 refs - https://backpack.tf/profiles/76561198305676157#!/compare/1528063200/1528149600

21 key 26 refs - https://backpack.tf/profiles/76561198382589541#!/compare/1528149600/1528236000

rounding everything and getting 2 sales at 20 and 1 sale at 22

sold within a day, untracable

https://backpack.tf/profiles/76561198155964094#!/compare/1527206400/1527292800

https://backpack.tf/profiles/76561198137975902#!/compare/1527206400/1527292800

untracable

https://backpack.tf/profiles/76561198080179568#!/compare/1524009600/1524096000

https://backpack.tf/profiles/76561198818441574#!/compare/1524009600/1524096000

Sales we have:

24, 20, 24, 20, 20, 22

Going with 20-24 keys range