Sale 1:

https://backpack.tf/profiles/76561198337734785#!/compare/1591228800/1591315200

https://backpack.tf/profiles/76561198044035139#!/compare/1591228800/1591315200

Sold for 7 keys

sale 2:

https://backpack.tf/profiles/76561198439604683#!/compare/1591142400/1591315200

https://backpack.tf/profiles/76561198985910282#!/compare/1591228800/1591315200

QS

sale 3:

https://backpack.tf/profiles/76561198985910282#!/compare/1594684800/1594771200

https://backpack.tf/profiles/76561198880252856

Likely for ~7 keys from this buyer, can't accurately prove.

sale 4:

https://backpack.tf/profiles/76561198880252856

https://backpack.tf/profiles/76561198337734785#!/compare/1595030400/1595203200

QS

sale 5:

https://backpack.tf/profiles/76561198851414151#!/compare/1592956800/1593388800

https://backpack.tf/profiles/76561198337734785#!/compare/1595030400/1595203200

QS

sale 6:

https://backpack.tf/profiles/76561198358296372#!/compare/1594512000/1594598400

https://backpack.tf/profiles/76561198341171690#!/compare/1594512000/1594598400

Sold for 7 (most likely, can't say accurately), then QS

sale 7:

https://backpack.tf/profiles/76561198850274253#!/compare/1594339200/1594425600

https://backpack.tf/profiles/76561198079685423#!/compare/1594425600/1594512000

Untrace

sale 8:

https://marketplace.tf/items/tf2/30767;5;u6

$10.33 / $1.89 = 5.47 keys

$15.9 / $1.90 = 8.37 keys

$11 / $1.96 = 5.61 keys

$18.4 / $1.98 = 9.29 keys

total sales @:

5.45, 5.6, 7, 8.5, 9.5 keys

https://i.imgur.com/y9D0jbu.jpg

buyers up to ~6.5 keys,

Sellers down to ~7.5 keys,

https://i.imgur.com/GNWBjm2.jpg

SCM seller for ~7 keys,

https://i.imgur.com/ojTRpNw.jpg

MPTF seller for ~10 keys,

https://bot.tf/stats/item?def=30767&q=5&ef=Green%20Confetti&craft=1&aus=0&ks=0

should be noted that bot.tf traces three 7 key sales (sale 1, 3, 6),

taking 7 - 8.5 keys, conserving close to unsolds.