Well, I was going to rant some more, but nevermind.

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Sale 1: Sold for a Stormy Birdcage[12.5 keys]

http://backpack.tf/profiles/76561198130351697?time=1429772400

http://backpack.tf/profiles/76561198130351697?time=1429858800

12.5*0.9= 11.25 rounding to 11

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Sale 2: Sold for Terror Watt Authority[18.5 keys via mini]

http://www.tf2outpost.com/trade/25412291 B/O was 14

Just in case he changes it: http://gyazo.com/1fb16e91ee4349637db55cd053dd7ed7

http://backpack.tf/profiles/76561198141810914?time=1426834800

http://backpack.tf/profiles/76561198141810914?time=1427007600

14 as high end.

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Mini on Authority: Sold for 16 pure keys+S.F.Mackerel[2.75 keys]

http://backpack.tf/profiles/76561198065978750?time=1427094000

http://backpack.tf/profiles/76561198065978750?time=1427698800

From March 23-30 S.F.Mackerel were 2.75 keys

2.75*0.9=2.475 rounding to 2.5

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Sale 3: Sold for Dead Presidents Snaggle

http://backpack.tf/profiles/76561198152851040?time=1430377200

http://backpack.tf/profiles/76561198152851040?time=1430636400

I'm not using because I can't find a valid mini on the snaggle.

I feel like it would fall into the range anyways.

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If I did anything wrong, please let me know :D