Need to reupdate it's price

Currently Selling:

http://www.tf2outpost.com/trade/23870442 - B.O = 13 keys

http://www.tf2outpost.com/trade/23897975 - B.O = 11 keys

http://www.tf2outpost.com/trade/23993397 - B.O = 13 keys

http://www.tf2outpost.com/trade/23264656 - B.O = 13 keys

http://www.tf2outpost.com/trade/23919050 - B.O = 11 keys

Sold:

Sale 1:

http://www.tf2outpost.com/trade/23761183 B:O = 12 keys

Backpack before: http://backpack.tf/profiles/76561198103805244?time=1416211200

Backpack after: http://backpack.tf/profiles/76561198103805244?time=1417075200

Seems to have sold for 9 Keys

sale 2:

http://www.tf2outpost.com/trade/23776579 B.O = 13 keys

before: http://backpack.tf/profiles/76561198073537440?time=1416470400

After: http://backpack.tf/profiles/76561198073537440?time=1416556800

Seems to have sold for an orbiting planets Outdoorsman

Mini suggestion on outdoorsman:

http://www.tf2outpost.com/trade/23457954 B.O of 12, sold for 10 keys, few for 12 and 13 on Classified. Will take it as 12.

12 x.09 = 10.8 rounded up to 11 keys

Sales 1 and 2 are the most relevant. I was unable to find what the other sales below went for from their bp.tf history and tf2op profile. However I shall still use them as evidence since all their b.o's are lower than the current price

Sale 3:

http://www.tf2outpost.com/trade/23729564 B:O = 10 keys

Sale 4:

http://www.tf2outpost.com/trade/22962642 B:O = 11 keys

Sale 5:

http://www.tf2outpost.com/trade/23834827 B.O = 11 keys

Sale 6:

http://www.tf2outpost.com/trade/22718412 B:O = 12 keys

Any advice on how to improve my future price suggestions would be greatly appreciated.