Sale 1:

https://backpack.tf/profiles/76561198363395191#!/compare/1567382400/1567468800

https://backpack.tf/profiles/76561197964171516#!/compare/1567296000/1567468800

Sold for 8 keys

Sale 2:

https://backpack.tf/profiles/76561198068973456#!/compare/1566000000/1566086400

https://backpack.tf/profiles/76561198124581862#!/compare/1566000000/1566086400

Bulk

Sale 3:

https://backpack.tf/profiles/76561198124581862#!/compare/1566000000/1566086400

https://backpack.tf/profiles/76561198062983803#!/compare/1565913600/1566000000

sold for 8 keys (listed on MPTF immediately)

Sale 4:

https://backpack.tf/profiles/76561198305492646#!/compare/1563321600/1563408000

https://backpack.tf/profiles/76561198282998441#!/compare/1557878400/1563408000

Sold for 12 keys

Sale 5:

https://backpack.tf/profiles/76561198282998441#!/compare/1563408000/1563926400

https://backpack.tf/profiles/76561198160975724#!/compare/1557964800/1565913600

untrace

Sale 6:

https://backpack.tf/profiles/76561198160975724#!/compare/1566172800/1567728000

https://backpack.tf/profiles/76561198142892266#!/compare/1567123200/1567209600

https://backpack.tf/profiles/76561198368964060#!/compare/1566691200/1567209600

Untrace / bulk

Sale 7:

https://backpack.tf/profiles/76561198368964060#!/compare/1567209600/1567296000

https://backpack.tf/profiles/76561198847955284#!/compare/1567209600/1567296000

Bulk

Sale 8:

https://backpack.tf/profiles/76561198847955284#!/compare/1567209600/1567296000

https://backpack.tf/profiles/76561198155558267#!/compare/1567209600/1567296000

Sold for ~6.5 keys

sale 9:

https://backpack.tf/profiles/76561198042823991#!/compare/1568937600/1569024000

https://backpack.tf/profiles/76561198432929610#!/compare/1568764800/1569196800

SCM

Sale 10:

https://backpack.tf/profiles/76561198432929610#!/compare/1569196800/1569542400

https://backpack.tf/profiles/76561198080179568#!/compare/1569456000/1569542400

QS

Sale 11:

https://backpack.tf/profiles/76561198080179568#!/compare/1570147200/1570233600

https://backpack.tf/profiles/76561198125184142#!/compare/1570147200/1570233600

untrace

Sale 12:

https://marketplace.tf/items/tf2/229;5;u11

$22.52 / $1.82 = 12.37 keys

Sale 13:

https://backpack.tf/profiles/76561198121657633#!/compare/1555977600/1569024000

https://backpack.tf/profiles/76561198353309101#!/compare/1568937600/1569024000

bulk

Sale 14:

https://backpack.tf/profiles/76561198353309101#!/compare/1569110400/1569196800

https://backpack.tf/profiles/76561198199244659#!/compare/1569110400/1569196800

Bulk

Sale 15:

https://backpack.tf/profiles/76561198199244659#!/compare/1569628800/1569715200

https://backpack.tf/profiles/76561198873323763#!/compare/1569628800/1569715200

sold for ~10 keys in sweets

Sale 16:

https://backpack.tf/profiles/76561198873323763#!/compare/1569628800/1569715200

https://backpack.tf/profiles/76561198076521369#!/compare/1569628800/1569715200

Sold for Spell

Sale 17:

https://backpack.tf/profiles/76561198076521369#!/compare/1569888000/1569974400

https://backpack.tf/profiles/76561198148217351#!/compare/1569888000/1569974400

Sold for ~8 keys

sale 18:

https://backpack.tf/profiles/76561198148217351#!/compare/1569974400/1570060800

https://backpack.tf/profiles/76561198092244787#!/compare/1569196800/1569974400

Sold for ~6.5 keys

Sale 19:

https://backpack.tf/profiles/76561198092244787#!/compare/1569196800/1569974400

https://backpack.tf/profiles/76561198812543484#!/compare/1569974400/1570060800

Bulk

Sale 20:

https://backpack.tf/profiles/76561198812543484#!/compare/1570060800/1570147200

https://backpack.tf/profiles/76561198124117179#!/compare/1570060800/1570147200

Untrace

Sale 21:

https://backpack.tf/profiles/76561198124117179#!/compare/1570147200/1570233600

https://backpack.tf/profiles/76561198079841650#!/compare/1467331200/1570406400

https://backpack.tf/profiles/76561198970987097#!/compare/1570320000/1570406400

untrace

Total sales @:

6.5, 6.5, 8, 8, 8, 10, 12, 12.37 keys

buyers up up to 6 keys,

sellers down to 11 keys,

gonna call 6.5 low,

taking 8 - 12 keys.