#Challengeoftheweek. http://forums.backpack.tf/index.php?/topic/18297-challenges-of-the-week/

Sale #1

http://www.tf2outpost.com/trade/22094312

Sold for Green Energy Bonk Boy(15.5 buds * 0.9 = ~14 buds) + Purple Energy El Jefe(10 * 0.9 = 9 buds) + 10 buds + 20 keys

Backpack of seller

http://backpack.tf/profiles/76561198062327121?time=1409900400 Before

http://backpack.tf/profiles/76561198062327121?time=1410073200 After

Backpack of buyer

http://backpack.tf/profiles/76561198023624951?time=1409986800 Before

http://backpack.tf/profiles/76561198023624951?time=1410073200 After

Total: ~34.1 buds. Rounding off to 34 buds.

For those wondering why there is only one sale

http://forums.backpack.tf/index.php?/topic/6033-new-unusual-price-suggestion-guide-the-cheat-sheet/

Exception 1: High Tier Hats

Sales for high tier hats (>20 buds) can be based on a single sale if there are no other sales in the last 3 months. Estimations can be made for unpriced / outdated parts of that trade as long as reasonable estimations are provided.