Sale 1:

https://backpack.tf/profiles/76561198166125772#!/compare/1551225600/1551312000

https://backpack.tf/profiles/76561198306645854#!/compare/1550880000/1551312000

Sold for Brain Drain Motif

Motif Mini:

https://backpack.tf/suggestion/5cb01a27d381723f5167b4a6

Suggestion for 24 keys

Sale 2:

https://backpack.tf/profiles/76561198306645854#!/compare/1551312000/1551398400

https://backpack.tf/profiles/76561198213234076#!/compare/1551139200/1551398400

Sold for Blizzardy Trans(21)

Sale 3:

https://backpack.tf/profiles/76561198213234076#!/compare/1551657600/1551744000

https://backpack.tf/profiles/76561198119559226#!/compare/1551657600/1551744000

Sold for P Fetti Gatsby(15) + 6 keys

Total is 21 keys

Sale 4:

https://backpack.tf/profiles/76561198119559226#!/compare/1551744000/1551830400

https://backpack.tf/profiles/76561198156165878#!/compare/1551139200/1551830400

Sold with 3 keys for DP Exec

https://bot.tf/stats/listings/Y7E95584

B/O of 27 keys

use there

Sale 5:

https://backpack.tf/profiles/76561198156165878#!/compare/1552176000/1553212800

https://backpack.tf/profiles/76561198352738720#!/compare/1553126400/1553212800

Sold for 20 keys

Sale 6:

https://backpack.tf/profiles/76561198352738720#!/compare/1554768000/1554854400

https://backpack.tf/profiles/76561198202518148#!/compare/1554768000/1554854400

Sold for Slumber Kiss King

https://bot.tf/stats/listings/469L0094

B/O of 25 keys

Sale 7:

https://marketplace.tf/items/30767;5;u15;strange

$46.66 / $1.79 = 26.07 keys

Total sales @:

20, 21, 21, 24, 26 keys

Taking 20 - 26 keys