Frisky's name can be spelt with Francium Iodine Sulfur Potassium and Yttrium

Sale 1

http://www.tf2outpost.com/trade/27346002 Sold with 3 keys of sweets for Stormy HWNN

Bonk was offered

B/O for HWNN was 24

B/O for Bonk was 26

X + 3 = 24

X = 21

HWNN http://backpack.tf/item/4246970034

Bonk http://backpack.tf/item/281016711

Stuff https://gyazo.com/00a3cd10ca8e29fd4ed296881c65c0cd http://backpack.tf/profiles/76561198071775919?time=1446537600&compare=1446624000

Sale 2

http://www.tf2outpost.com/trade/27103034 Sold for Miami Fuka + 2.8 keys of sweets

B/O for Bonk was 30

B/O for Fukaa was 21

X = 19*0.9 + 2.8*0.9

X = 20

Bonk http://backpack.tf/item/281016711

Fukaa http://backpack.tf/item/2247696625

Sweets https://gyazo.com/ad32fcaece89a0b5378b3729647b4eed http://backpack.tf/profiles/76561198045540185?time=1444028400&compare=1443682800

Sale 3 OUTLIER

[No OP Trade] Sold for MN Birdcage + 16.2 keys of sweets

X = 14*0.9 + 16.2*0.9

X = 27

Stuff http://backpack.tf/profiles/76561198030050182?time=1447056000&compare=1446969600 https://gyazo.com/90ef769a8d8154e58f1a501b55fcc70f

Cage http://backpack.tf/item/2198477153

Bonk http://backpack.tf/item/237771023

Sale 4

http://www.tf2outpost.com/trade/27461594 Sold for Steaming Fedora

B/O for Bonk was 23

Fedora had no trade, presuming offered

X = 23*0.9

X = 21

Fedora http://backpack.tf/item/1349407886

Bonk http://backpack.tf/item/257197707

Trade http://backpack.tf/profiles/76561198070377972?time=1447920000&compare=1448006400

Seller

http://www.tf2outpost.com/trade/27557564 17 keys for a week, low-end