"I think it's a good price for an anusual who have selle 20 keys sometimes."

Yeah no.

The sales:

Sale 1:

Sold for KaW big chief (~10.5) + 2 keys

http://backpack.tf/profiles/76561198118824764?time=1430550000 before

http://backpack.tf/profiles/76561198118824764?time=1430636400 after

0.9*10.5 + 2 = ~ 11.5, rounding to 12

-> 12 keys

Sale 2:

Sold for duped orbfire SnS (~13)

http://backpack.tf/profiles/76561198143665549?time=1427969162 before

http://backpack.tf/profiles/76561198143665549?time=1428303600 after

0.9*13 = ~11

-> 11 keys

Sale 3:

Sold for NnB flamenco (~15)

http://backpack.tf/profiles/76561198052306405?time=1427180400 before

http://backpack.tf/profiles/76561198052306405?time=1427307667 after

no overpay, mini capped at BO

-> 15 keys

The minis:

Mini SnS

- QSed for 10 pure

http://backpack.tf/profiles/76561198143665549?time=1429553317 before

http://backpack.tf/profiles/76561198143665549?time=1429772400 after

- Sold for aces capotain (~16)

http://backpack.tf/profiles/76561198118786184?time=1430072113 before

http://backpack.tf/profiles/76561198118786184?time=1430118000 after

- Sold for stormy dogger (~16)

http://backpack.tf/profiles/76561198142723430?time=1430463600 before

http://backpack.tf/profiles/76561198142723430?time=1430618259 after

averaged: 10-16 => 13

Taking 13

Mini flamenco:

Sold for miami tavish (~19)

http://www.tf2outpost.com/trade/25721746

http://backpack.tf/profiles/76561198052306405?time=1431154800 before

http://backpack.tf/profiles/76561198052306405?time=1431530573 after

BO 15, capping at that

Taking 15

Sales ranging from 11-15, this should be fine.

[Edit]: theres a seller at 12 but its duped.

Constructive criticism welcome!

~Foamy :3