I like Green

Case made and closed.

Sellers: - https://gyazo.com/595617a3518f05a0ad5ebd3a64819f1c

https://backpack.tf/item/8154566869 - young @ 124.09 keys

https://backpack.tf/item/1968152057 - 27 days @ 125 keys

Sale 1)

https://backpack.tf/profiles/76561198888574707#!/compare/1602892800/1603497600

https://backpack.tf/profiles/76561198965164940#!/compare/1603843200/1604361600

https://marketplace.tf/items/tf2/30119;5;u9

$199.99 / $1.82 = 110 keys

No buyout traced

Sale 2)

https://backpack.tf/profiles/76561198888574707#!/compare/1599868800/1602374400

https://marketplace.tf/items/tf2/30119;5;u9

$194.99 / $1.88 = 104 keys

No buyout traced

Sale 3)

https://backpack.tf/profiles/76561198012675620#!/compare/1604188800/1605744000

https://backpack.tf/profiles/76561198000851126#!/compare/1605398400/1605657600 - Sold for 125 keys, looks like Keys were fresh purchases or from private inventory (explains the months of gap between compares on seller's inventory)

Sale 4)

https://backpack.tf/profiles/76561198204215085#!/compare/1603411200/1603497600

https://backpack.tf/profiles/76561198000851126#!/compare/1603411200/1603497600 - Sold for 35 keys, incomplete

Sale 5)

https://backpack.tf/profiles/76561198210864032#!/compare/1603324800/1603411200

https://backpack.tf/profiles/76561198204215085#!/compare/1603238400/1603324800 - Bulk, would be better to price that anyway

Sale 6)

https://backpack.tf/item/8630476113 https://marketplace.tf/items/tf2/30119;5;u9

$200 / $1.76 (last weeks) = 114 keys

No buyout traced

Sale 7)

https://backpack.tf/profiles/76561198002186909#!/compare/1607904000/1607990400

https://backpack.tf/profiles/76561198353865610#!/compare/1607904000/1607990400 - Sold for ~94 keys to a buy order

Sale 8)

https://backpack.tf/profiles/76561198002186909#!/compare/1604880000/1604966400 - Untrace

Sale 9)

https://backpack.tf/profiles/76561198029347825#!/compare/1603929600/1604188800 - Untrace

Sale 10)

https://backpack.tf/profiles/76561198829287657#!/compare/1604102400/1604880000 - Untrace

Sale 11)

https://backpack.tf/profiles/76561198188093413#!/compare/1603929600/1604016000

https://backpack.tf/profiles/76561198064375438#!/compare/1603929600/1604016000 - Using there

Sale 12)

https://backpack.tf/profiles/76561198188093413#!/compare/1601683200/1601769600 - Untrace

Sale 13)

https://backpack.tf/profiles/76561198043444428#!/compare/1600646400/1600732800 - Use there as this has oodles of sales already

Note - https://backpack.tf/item/3402824767 - Couple of gambling transfers, excluding.

Sale 14)

https://backpack.tf/profiles/76561198090479609#!/compare/1605312000/1605571200

https://backpack.tf/profiles/76561198125791160#!/compare/1605484800/1605571200 - Use there as it's the only sale there

Sale 15)

https://marketplace.tf/items/tf2/30119;5;u9

$130 / $1.87 = 70 keys

Sales:

70, 104, 110, 114 and 125

Calling 70 low due to lots of higher sales

Rounding low-end for a neater mid-point

Thanks =)