Gallium is a metal that melts in your hand

Sale 1

http://backpack.tf/profiles/76561198041325085?time=1448870400&compare=1448956800 Sold for Aces Rotation, best used to price Rotation

Sale 2

http://www.tf2outpost.com/trade/27499381 Sold for DBD Merry + Pro KS SF Flare

B/O for Merry was 25

Phantom had no trade, but not presumed offered

X = 25*0.9 + 6.6*0.9

X = 28

Merry http://backpack.tf/item/2153763807

Flare http://backpack.tf/item/2182131918

Phantom http://backpack.tf/item/2203887642

Sale 3

http://backpack.tf/profiles/76561198079955710?time=1447920000&compare=1447833600 Bulk for C9 Hong Kong

Sale 4

[No OP Trade] Sold for 22 keys + 3.3 keys of metal

X = 22 + 3.3

X = 25

Keys http://backpack.tf/profiles/76561198136883260?time=1449216000&compare=1449302400

Le Party http://backpack.tf/item/4236487401