So technically, prices less than 2 months old can only be updated when the change in value is more than 5%... this change is like 4.8%... closeenough.jpeg? Counter-suggestion 2 weeks later? Idk, but my sale's going to be out of date by the next suggestion unless that happens within days of this price being 2 months old, so I'm just gonna throw it out here.

Proof from the previous suggestion:

http://www.tf2outpost.com/trade/24361113

Bought for 10, sold for 11

http://i.imgur.com/sqipzbz.png - 12 keys

New owner: http://backpack.tf/profiles/76561198067270175

I bought it off the SCM for $23.24 CAD (equivalent to 8 keys on my end, 7 on the seller's). I don't know why it was so cheap, either.