Hey second suggestion :) (resuggesting)

Sale 1 : http://www.tf2outpost.com/trade/25954344

Sold for 28 keys Quicksold not counting

Sale 2 : http://www.tf2outpost.com/trade/25123161

Before : http://backpack.tf/profiles/76561198014924964?time=1426748400

After : http://backpack.tf/profiles/76561198014924964?time=1426834800

Sold for 6.5 buds pure when buds were 10 keys = 65 keys

Sale 3 : Hard to find sales so this one is a bit old but should hopefully be fine. http://www.tf2outpost.com/trade/24852965

Before : http://backpack.tf/profiles/76561197998635950?time=1422604800

After : http://backpack.tf/profiles/76561197998635950?time=1422691200

Sold for a purple energy yellow belt : 97*0.9 = 87 keys Not counting as its 4 months old

65 sounds good to me

Pls help this suggestion if u have proof