I was going to counter the same suggestion you countered, I didn't even realize this suggestion was open

so here is what I had:

https://backpack.tf/profiles/76561198263836417#!/compare/1623196800/1623283200

https://backpack.tf/profiles/76561198129995083#!/compare/1623110400/1623283200

36 keys

https://backpack.tf/profiles/76561198129995083#!/compare/1623542400/1623715200

https://backpack.tf/profiles/76561198203017400#!/compare/1616025600/1624233600

Untraceable

https://backpack.tf/profiles/76561198169756327#!/compare/1625616000/1626048000

https://backpack.tf/profiles/76561198099098829#!/compare/1625961600/1626048000

19 keys

https://backpack.tf/profiles/76561198099098829#!/compare/1626393600/1626480000

https://backpack.tf/profiles/76561198182795337#!/compare/1626393600/1626566400

Bulk for Cloudy Moon Commando Elite

https://backpack.tf/profiles/76561198182795337#!/compare/1626912000/1626998400

https://backpack.tf/profiles/76561198331224889#!/compare/1626912000/1626998400

Bulk for keys it seems

https://backpack.tf/profiles/76561198331224889#!/compare/1626912000/1626998400

https://backpack.tf/profiles/76561198799601783#!/compare/1626912000/1626998400

20 keys, sold in the same day as above

https://backpack.tf/profiles/76561198799601783#!/compare/1626912000/1626998400

https://backpack.tf/profiles/76561198091502579#!/compare/1626825600/1626998400

32 keys, sold in the same as above

https://backpack.tf/profiles/76561198091502579#!/compare/1627084800/1627171200

https://backpack.tf/profiles/76561198193619870#!/compare/1626220800/1628467200

https://marketplace.tf/items/tf2/30753;5;u131

$79.99 / $1.81 = 44.19 keys

Sales:

19

20

32

36

44

20 is a same day sale, and sales on MP would suggest that 19 is low

I believe you should resuggest at 32-44