Steaming Scotch Bonnet

New price: 9 keys

[proof below]

SALE #1 = 11 keys

https://marketplace.tf/items/306;5;u36

Sold for $21.99 ( / $1,95 ) = 11 keys

SALE #2 = 12 keys

https://marketplace.tf/items/306;5;u36

Sold for $22,70 ( / $1,90 ) = 12 keys.

SALE #3 = 9 keys

https://backpack.tf/profiles/76561198043924535#!/compare/1519344000/1519430400

Sold for 9 keys.

SALE #4 = invalid

https://backpack.tf/profiles/76561198217759411#!/compare/1519084800/1519171200

Bulk.

SALE #5 = 9 keys

https://backpack.tf/profiles/76561198217759411#!/compare/1518480000/1518566400

https://backpack.tf/profiles/76561198344933095#!/compare/1518480000/1518566400

Sold for 9 keys.

SALE #6 = invalid

https://backpack.tf/profiles/76561198064291520#!/compare/1519344000/1519948800

Seems a bit high.

SALE #7 = 9 keys

https://backpack.tf/profiles/76561198441399371#!/compare/1516233600/1516320000

Sold for 9 keys.

SALE #8 = 9 keys

https://backpack.tf/profiles/76561198115800938#!/compare/1520467200/1520553600

https://backpack.tf/profiles/76561198304138933#!/compare/1520467200/1520553600

Sold for ~8.8 keys mixed. Rounds to 9 keys.

SUMMARY

Sales: 9 / 9 / 9 / 9 / 11 / 12 keys

Sellers: 9 / 10 / 11 keys

https://gyazo.com/ca1f71a70e77c188ea8e46d58fe7dc36

The marketplace.tf sales seem to be outliers here compared to sales and current sellers. Going with 9 keys.