THIS WAS A PAIN.

Sale 1

http://www.tf2outpost.com/trade/25062452 Sold for 12 keys pure

X = 12 keys

Keys http://gyazo.com/051a1f822ae8476a26745a3c2e0dc9fd

Country http://backpack.tf/item/1639752088

Sale 2 OUTLIER due to the Country being offered 13 keys

http://www.tf2outpost.com/trade/24367272 Sold for Aces Toque

B/O for Toque was 17 keys (1.2)

B/O for Country was 1.1

X = 12*0.9

X = 11 keys

Toque http://backpack.tf/item/2490045162

Big Country http://backpack.tf/item/1503886465

Mini for Toque

[No OP Trade] Sold for Stormy Gridiron + 1.5 keys of sweets

X = 11.5*0.9 + 1.5*0.9

X = 12 keys

Buddy http://backpack.tf/item/751855732

Toque http://backpack.tf/item/2669176822

Sweets http://gyazo.com/a3e74c9a76e6e1ee748271f91b28cd34

Sale 3 OUTLIER

http://www.tf2outpost.com/trade/24525707 Sold with a Gold Flapjack and 6 keys for Twatt Soviet

B/O for Gentleman was 18 keys

X + 6 + 1 = 16.8

X = 10

Soviet http://backpack.tf/item/2666198178

Country http://backpack.tf/item/1085724606

Flapjack http://backpack.tf/item/2217699646

Why is this sale an outlier?

http://www.tf2outpost.com/trade/24630919 Rejected 13 keys pure

Sale 4

http://www.tf2outpost.com/trade/24413939 Sold for Pro KS Aussie Tomislav

B/O for Tomi was 16 keys

Country was offered on Tomi

X = 14.5 keys, rounding to 15

Tomi http://backpack.tf/item/2170548689

Country http://backpack.tf/item/1085724606

Mini for Country

Going for ~a bud http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Australium%20Tomislav