Sold for 5 buds (10):

http://backpack.tf/profiles/76561198028269888?time=1427439600 (March 27th)

http://backpack.tf/profiles/76561198028269888?time=1427612400 (March 29th)

5 * 10 = 50 keys

Sold for 50 keys:

http://i.gyazo.com/5e40e7720b4a1de63cd84e0cc668c151.png

http://backpack.tf/item/959327871

50 keys

Sold for 7 buds (8):

http://i.gyazo.com/e73628786b972c5e28b13bb37040a450.png

http://backpack.tf/item/929088502

7 * 8 = 56 keys

I can also drop this hat's value to 100 keys. It was unsold for 100 keys for a month, and I barely got any offers worth ~100 keys for this hat. Decided to leave it as an aggressive drop for now, but open to feedback.

http://www.tf2outpost.com/trade/25677667

http://www.tf2outpost.com/trade/25809708