Proof below. Overpay calculated. Original prices used

Sales

http://backpack.tf/profiles/76561198121322631?time=1397977200 ---> http://backpack.tf/profiles/76561198121322631?time=1398063600

http://backpack.tf/vote/id/53568f334cd7b8762d8b4673

1 bud + 7 keys (Bills) = 1.4 buds

Then it sold for a NnB Nickel next ( http://www.tf2outpost.com/item/440,2476446955,30006,5 ) = 1.6 buds

Side note: The next owner had one

http://backpack.tf/profiles/76561198043734471?time=1397890800 ---> http://backpack.tf/profiles/76561198043734471?time=1398063600

Aces Tungsten = 1.1 buds

http://www.tf2outpost.com/item/440,2558917366,97,5 + http://www.tf2outpost.com/item/440,2561502194,208,11 ---> http://www.tf2outpost.com/item/440,2564675025,202,11

Added an Aussie Flame for an Aussie Minigun = 0.6 buds (outlier)

Help / Constructive Criticism / Additional Proof / Counter-Proof is ALWAYS welcome! >;3