Resuggesting

Sale 1 :

Before : http://backpack.tf/profiles/76561198060850702?time=1438239600

After : http://backpack.tf/profiles/76561198060850702?time=1438326000

Sold for 35 keys pure.

Sale 2 : http://www.tf2outpost.com/trade/26215752

Before : http://backpack.tf/profiles/76561198022146129?time=1437462000

After : http://backpack.tf/profiles/76561198022146129?time=1437980400

Sold for a Purple Energy Prancer's Pride but 2 keys in items were added : 40 - 2 = 38 keys

Mini on the pride : http://www.tf2outpost.com/trade/26213324

Before : http://backpack.tf/profiles/76561198021574007?time=1434265200

After : http://backpack.tf/profiles/76561198021574007?time=1434438000

Sold for a Burning Flames Bloke's Bucket Hat : 52 * 0.9 = 47 keys. Capping at 40 keys.

Thus rounding the range from 35 to 40 keys.

Supportive crticism welcome

PS : Thx to jacob for the help ;)