Sale 2, if only he didn't sell his keys so damn quickly.

Sale 1

http://www.tf2outpost.com/trade/26113770 Sold for MN Cowl + Aces Samur-Eye + V. Gold Practitioner's Mask

B/O for Vivid was 51

X = 23.5*0.9 + 1.4*0.9 + 26*0.9

X = 46

MN http://backpack.tf/item/3006980610

Samur http://backpack.tf/item/1850226724

Vivid http://backpack.tf/item/1018886752

Mask http://backpack.tf/item/69351813

Mini for Miami Nights Cowl

http://backpack.tf/vote/id/55fe59bdb98d88170d8b467f 23.5, using 23.5

Sale 2

http://www.tf2outpost.com/trade/26292059 Sold for 50 keys + UC Summer Hat

X = 50 + 7*0.9

X = 56

Keys were not in inventory BUT they were used to buy http://backpack.tf/item/3514922709 and http://backpack.tf/item/2313496648. The Sniper is the greatest giver of proof in that regard with this very person offering 35 of the 50 keys used here http://www.tf2outpost.com/trade/26303170

Summer Hat http://backpack.tf/item/347205675

Cowl http://backpack.tf/item/1018886752