I like Translating

Secret of the universe

Sellers: - https://gyazo.com/2082b9add4b5b810e9ef02a471990225

https://backpack.tf/item/8880971583 - 5 days @ 16 keys

https://backpack.tf/item/8263735439 - young @ 17 keys

https://backpack.tf/item/9792895165 - 12 days @ 17 keys

https://backpack.tf/item/9448867969 - 5 days @ 22 keys

https://backpack.tf/item/7955636512 - 2 days @ 37.39 keys

Sale 1)

https://backpack.tf/profiles/76561198088707185#!/compare/1618790400/1618963200

https://backpack.tf/profiles/76561198236425506#!/compare/1618790400/1618963200 - Bulk

Sale 2)

https://backpack.tf/profiles/76561199102407070#!/compare/1616630400/1616716800

https://backpack.tf/profiles/76561198236425506#!/compare/1616630400/1616716800 - Sold for 14 keys

Sale 3)

https://backpack.tf/profiles/76561198280925326#!/compare/1622246400/1622332800

https://backpack.tf/profiles/76561198101915413#!/compare/1622246400/1622332800 - Bulk

Note: - https://backpack.tf/item/9448867969 - Excluding tradeit.gg transfers

Sale 4)

https://backpack.tf/profiles/76561198874598825#!/compare/1620259200/1620345600

https://backpack.tf/profiles/76561198051160466#!/compare/1620259200/1620345600 - Untrace

Sale 5)

https://backpack.tf/profiles/76561198994742089#!/compare/1620086400/1620172800

https://backpack.tf/profiles/76561198874598825#!/compare/1620086400/1620172800 - Sold for 13 keys

Sale 6)

https://backpack.tf/profiles/76561199075390787#!/compare/1620086400/1620172800

https://backpack.tf/profiles/76561198994742089#!/compare/1619827200/1620086400 - Untrace

Sale 7)

https://backpack.tf/profiles/76561198839147348#!/compare/1619740800/1619913600

https://backpack.tf/profiles/76561199075390787#!/compare/1619481600/1620000000 - Sold for a Searing Plasma Universal Translator - Very high here, likely something else involved with the TF

Note: - https://backpack.tf/item/8880971583 - Excluding bot/owner transfer

Sale 8)

https://backpack.tf/profiles/76561198080179568#!/compare/1618185600/1618272000 - Likely $39.99 and then dumped to a bot buy order, therefore excluding

Sale 9)

https://backpack.tf/profiles/76561198302962128#!/compare/1615334400/1617840000 - Untrace, possibly SCM

Note: - https://backpack.tf/item/8685058913 - Excluding mannco.trade transfers

Sale 10)

https://backpack.tf/profiles/76561198337734785#!/compare/1616371200/1616457600

https://backpack.tf/profiles/76561199041022874#!/compare/1616457600/1616544000 - 9 keys match here

https://gladiator.tf/listings/60585bc2a44335ab2e649e6e - Sold for ~14 keys

Sale 11)

https://backpack.tf/profiles/76561198153658869#!/compare/1619568000/1619654400

https://backpack.tf/profiles/76561199101711836#!/compare/1619568000/1619654400 - Sold via buy order for ~11 keys

Sale 12)

https://backpack.tf/profiles/76561198153658869#!/compare/1619568000/1619654400

https://backpack.tf/profiles/76561198850274253#!/compare/1619568000/1619654400 - Untrace, would've been less than the buy order sale since it was duped instantly

Sale 13)

https://backpack.tf/profiles/76561199004803157#!/compare/1621296000/1621382400

https://backpack.tf/profiles/76561198946944418#!/compare/1620864000/1622160000 - Untrace

Note: - https://backpack.tf/item/7602376587 - Excluding tradeit.gg transfers

Sale 14)

https://backpack.tf/item/7602376587 https://marketplace.tf/items/tf2/30658;5;u11

$39.99 / $2.17 = 18 keys

Sale 15)

https://backpack.tf/profiles/76561198453530349#!/compare/1616457600/1616544000 - Bulk

Sale 16)

https://backpack.tf/profiles/76561199095973777#!/compare/1616112000/1616284800

https://backpack.tf/profiles/76561198453530349#!/compare/1616198400/1616284800 - Sold via buy order for 11 keys

Sale 17)

https://backpack.tf/profiles/76561199123702536#!/compare/1615939200/1616112000

https://backpack.tf/profiles/76561199095973777#!/compare/1616025600/1616112000 - Bulk

Sale 18)

https://backpack.tf/profiles/76561198408606810#!/compare/1615593600/1615680000

https://backpack.tf/profiles/76561199123702536#!/compare/1615680000/1615939200 - Bulk

Sale 19)

https://backpack.tf/profiles/76561198874598825#!/compare/1617840000/1617926400

https://backpack.tf/profiles/76561198413192557#!/compare/1617926400/1620259200 - Untrace

Sale 20)

https://backpack.tf/profiles/76561198170138453#!/compare/1617753600/1617840000

https://backpack.tf/profiles/76561198874598825#!/compare/1617753600/1617840000 - Sold for 11 keys, they paid 14 keys so excluding

Sale 21)

https://backpack.tf/profiles/76561198304550747#!/compare/1617235200/1617321600

https://backpack.tf/profiles/76561198170138453#!/compare/1617235200/1617321600 - Sold for 14 keys, then resold for 11. Excluding

Sale 22)

https://backpack.tf/profiles/76561198125908828#!/compare/1615075200/1615420800

https://backpack.tf/profiles/76561198304550747#!/compare/1615420800/1615507200 - Untrace

Sale 23)

https://backpack.tf/profiles/76561198088707185#!/compare/1620518400/1620777600

https://backpack.tf/profiles/76561199142483868#!/compare/1620691200/1620864000 - Using there to price

Sales 24+25)

https://marketplace.tf/items/tf2/30658;5;u11

$39.99 / $2.00 = 20 keys

$39.99 / $2.00 = 20 keys

Sales:

13, 14, 14, 18, 20 and 20

Calling 18 and 20 high as there have been a lot of lower sales for keys (the higher sales are all marketplace.tf ones) and current unsolds

Excluding all the 11 key sales due to higher buy orders, excluding these helps even out the range as we are excluding a few higher outliers also

Thanks =)