Sale 1:

Sold for 13 keys

Seller: https://backpack.tf/profiles/76561198305676157#!/compare/1531872000/1531958400

Buyer: https://backpack.tf/profiles/76561198163338252#!/compare/1531958400/1532044800

Bot.tf confirms: https://i.imgur.com/HqZcSaf.png

X = 13

Sale 2-4:

Sold for $24, $21, & $12.55 on marketplace.tf

https://marketplace.tf/items/30839;5;u3005

24/1.95 = ~12.3

21/1.99 = ~10.6

12.55/1.97 = ~6.37

X = 12

X = 11

X = 6.5

Sale 5:

Sold for 9 keys + 7.11 ref to a bot?

Seller: https://backpack.tf/profiles/76561198113853563#!/compare/1532217600/1532304000

Buyer: https://backpack.tf/profiles/76561198305676157#!/compare/1532217600/1532304000

Untraceable. Bot.tf confirms, but it is unreliable. https://i.imgur.com/HqZcSaf.png

X = 9?

Sellers:

13 keys:

https://i.imgur.com/dcfaKKh.png

https://backpack.tf/item/6478594522

https://backpack.tf/item/6700884723

15 keys:

https://i.imgur.com/9oo2pBK.png

https://backpack.tf/item/5382112369

16 keys:

https://i.imgur.com/RFEGCuV.png

https://backpack.tf/item/6117599421

20 keys:

https://i.imgur.com/fszCGv9.png

https://backpack.tf/item/5421231863

https://backpack.tf/item/5360068562

+ 2 on marketplace for ~9.5 keys worth:

https://marketplace.tf/items/30839;5;u3005

https://backpack.tf/item/5369786247

https://backpack.tf/item/6753902063

Sales at:

6.5

11

12

13

And an untraceable sale at 9.

Using the marketplace sellers as the low-end.

Going with 9.5-13.

The two marketplace sellers I was using for as the low end have now sold.

https://marketplace.tf/items/30839;5;u3005

So we have sales at the low-end instead of sellers.