Sold for 230 keys + Duped Heart Phantom (55) + Screaming Tiger Buy A Life (45)

http://backpack.tf/profiles/76561197991940374?time=1430636400 (May 3rd)

http://backpack.tf/profiles/76561197991940374?time=1430809200 (May 5th)

((55 + 45) * 0.9) + 230 = 320 keys

Duped Heart Phantom:

http://www.tf2outpost.com/trade/25187979

Sold with 20 keys for a Duped Beams Phantom (100)

http://backpack.tf/profiles/76561198065702558?time=1427439600 (March 27th)

http://backpack.tf/profiles/76561198065702558?time=1427871600 (April 1st)

100 - 20 = 80 keys

http://www.tf2outpost.com/trade/24718677 Clean seller at 65 keys

http://www.tf2outpost.com/trade/25890644 Clean seller at 54 keys (3 days)

http://i.imgur.com/Bu0lVP3.png Two sellers in classifieds at 55 keys (including the duped one received from the trade)

I was expecting the sales for the duped version to be lower. In this case I'll use 55 keys as it's probably fairly close.

Duped Beams Phantom:

http://www.tf2outpost.com/trade/25218729

Sold for 100 keys

http://backpack.tf/profiles/76561198043913077?time=1430377200 (April 30th)

http://backpack.tf/profiles/76561198043913077?time=1430463600 (May 1st)

Screaming Tiger Buy A Life:

http://backpack.tf/vote/id/554f0fc4b98d88f7658b494c