Sale #1: -

http://www.tf2outpost.com/trade/24481262

Quicksold. Sold this and a Purple Confetti Cosa for 6 buds.

Sale #2:

http://www.tf2outpost.com/trade/24284276

Sold for a Vivid Front runner and not even a key in sweets, like 10 refined. Looks like around 2.5 buds more were added, going to consider this an outlier as 1 on outpost wants ~5 for 1 week. http://www.tf2outpost.com/trade/24978469

Backpack before: http://backpack.tf/profiles/76561198054189926?time=1420185600

Backpack after: http://backpack.tf/profiles/76561198054189926?time=1420617600

Sale #3(Thank you, The One): 10 / 15 = 0.7 4 - 0.7 = 3.3 buds

http://www.tf2outpost.com/trade/24664017

Sold with 10 keys for 4 buds. Buds were 15 keys at the time of sale.

http://i.gyazo.com/fa4782bf24c9b0e5039ba31d6da39f4c.png

http://i.gyazo.com/f0cf97e2d9e40cc8d6326b4f71f12c89.png