2 year old price!

Sale 1:

Sold for a Stormy Storm Connoisseur's Cap ~19 and a Steaming Tippler's Tricorne ~12

(19 + 12)*0.9 = 27.9 rounding to 28 keys

http://www.tf2outpost.com/trade/25350756

Seller Before: http://backpack.tf/profiles/76561198080796147?time=1426402800

Seller After: http://backpack.tf/profiles/76561198080796147?time=1426575600

Buyer Before: http://backpack.tf/profiles/76561198054785033?time=1426402800

Buyer After: http://backpack.tf/profiles/76561198054785033?time=1426489200

Sale 2:

Sold for a Time Warp Virus Doctor

(29.5*0.9) = 26.55 rounding to 27 keys

http://www.tf2outpost.com/trade/25820954

http://backpack.tf/profiles/76561198072921983?time=1430377200 (April 30th)

http://backpack.tf/profiles/76561198072921983?time=1430463600 (May 1st)

Sale 3: (outlier)

Sold for a Disco Beat Down Brown Bomber and a Phosphorous Ye Olde Baker Boy

http://backpack.tf/profiles/76561198054785033?time=1430031600 (April 26th)

http://backpack.tf/profiles/76561198054785033?time=1430204400 (April 28th)

http://www.tf2outpost.com/trade/25793786

Definitely an outlier, it would end up capping at 76 keys

Notes:

I think this is all the recent sales for a clean Roboactive bucket.

Mini for the Stormy Storm Connoisseur's Cap

Sold for a Terror-Watt Gym Rat + 2 keys

(19*0.9) + 2 = 19.1 rounding to 19 keys

No outpost trade

Seller Before: http://backpack.tf/profiles/76561198071161731?time=1426143600

Seller After: http://backpack.tf/profiles/76561198071161731?time=1426230000

Mini for the Steaming Tippler's Tricorne ~

Sold with 1 key for a Steaming Big Chief

(2.02*7)*0.9 - 1 = 11.726 rounding to 12 keys

http://www.tf2outpost.com/trade/25594976

Seller Before: http://backpack.tf/profiles/76561198135091159?time=1428130800

Seller After: http://backpack.tf/profiles/76561198135091159?time=1428217200

Mini for the Time Warp Virus Doctor

http://backpack.tf/vote/id/5548ba77ba8d889d4c8b4569

Conclusion:

Sales at 27 and 28, taking the final price at 27 to 28