Sale 1:

Sold for 10 keys

Seller: https://backpack.tf/profiles/76561198357046243#!/compare/1522454400/1522540800

Buyer: https://backpack.tf/profiles/76561198271892201#!/compare/1522540800/1522800000

Confirmed by bot.tf: https://i.imgur.com/iE4Gb8q.png

X = 10

Sales 2, 3, 4, 5 & 6:

Sold for $14, $17, $17.49, $17.50 and $18 on Marketplace.tf

https://marketplace.tf/items/30839;5;u3009

Not gonna bother linking all of them.

14/1.9 = ~7.37

17/1.95 = ~8.72

17.49/1.9 = ~9.2

17.5/1.9 = ~9.21

18/1.98 = ~9.09

X = 7.5

X = 8.5

X = 9 (3x)

Sale 7:

Sold for Showtopper Battin’

Seller: https://backpack.tf/profiles/76561198073941051#!/compare/1519948800/1520035200

Buyer: https://backpack.tf/profiles/76561198329913999#!/compare/1519948800/1520035200

May be better to use on the Battin, or not at all.

Sellers:

12 keys:

https://i.imgur.com/DOkw0jv.png

https://backpack.tf/item/6338527855

35 keys:

https://i.imgur.com/7aRDgAA.png

https://backpack.tf/item/6205853089

Sales at:

7.5

8.5

9 (3x)

10

https://i.imgur.com/Q9o8ssw.png - 2 buyers at ~8 keys, however, one can’t trade for 15 days, and sellers indicate that this seems pretty high for a quickbuy price. Will leave this suggestion open to see what happens to them.

Going with 7.5-9.

From the last suggestion:

https://backpack.tf/suggestion/5ac3061e44325a53b4223e60

Cheap SCM sellers have buggered off, making 7.5 look low. New sale at 10 now too. Excluding 7.5.

Going with 8.5-10.