Ressugesting because of a mistake. All credit goes to jacobmeister for making this suggestion

Got this with the ever-so-cool RADomizer: https://dl.dropboxusercontent.com/u/93172108/tf2/random-unusual.html

http://backpack.tf/profiles/76561198060976608?time=1411196400

http://www.tf2outpost.com/trade/22731283 - sold with GFetti Exclusive + GE Brainiac for Golden Pan

GFetti Exclusive = 19.5 * 0.9 = ~17.5

GE Brainiac¹ = 11.8 * 0.9 = ~10.6

Pan = 77.5 * 0.9 = ~69.8

69.8 - 17.5 - 10.6 = 41.7, rounding to 42.

¹ Brainiac:

http://www.tf2outpost.com/trade/23288759 - looking for offers

http://backpack.tf/profiles/76561198063814565?time=1407913200

http://backpack.tf/profiles/76561198063814565?time=1407999600 - sold with C. Bubbles Beak² for Scorching Danger

Danger = 20 * 0.9 = 18

Beak = 6.85 * 0.9 = ~6.2

18 - 6.2 = 11.8.

11.8 should be okay.

² Beak:

http://backpack.tf/profiles/76561198032034038?time=1413788400

http://www.tf2outpost.com/trade/23247743 - sold for C9 BoA (~10, outdated)

http://backpack.tf/profiles/76561198037947164?time=1411023600

http://www.tf2outpost.com/trade/22687871 - sold for Beams Noble (7.25 * 0.9 = ~6.5)

http://backpack.tf/profiles/76561198060976608?time=1409641200

http://www.tf2outpost.com/trade/22361449 - sold for 4 pure + 57 keys (buds were 17.75, = ~3.2 buds) = ~7.2

6.5 - 7.2 shouldn't hurt.

So, after all that crap, a flat value of 41.7, rounding to 42.