Sagittarius A is the name of the Black Hole at the center of our Galaxy

Sale 1

[No OP Trade] http://backpack.tf/profiles/76561198158017248?time=1448265600&compare=1448352000 Sold for 12.7 keys of sweets

X = 12.7*0.9

X = 11

Sola http://backpack.tf/item/274068829

Garbage http://backpack.tf/profiles/76561198158017248?time=1448265600&compare=1448352000 https://gyazo.com/e5f0b9f6965e50a3c52012560aacdfb0

Sale 2

http://www.tf2outpost.com/trade/27357910 Sold for Smoking Goggles + 1.6 keys of sweets

B/O for Goggles was 12

Sola had no trade but not presumed offered

X = 11*0.9 + 1.6*0.9

X = 12

Goggles http://backpack.tf/item/1788630702

Sola http://backpack.tf/item/274068829

Trade http://backpack.tf/profiles/76561198100016762?time=1447315200&compare=1447488000

Mini for Goggles

http://backpack.tf/vote/id/5674e7a1ba8d88a77ca94a91 11 keys, using 11

Sale 3

http://backpack.tf/profiles/76561198066195760?time=1447660800&compare=1447574400 Bulk for Ether Sombrero

Sale 4

http://www.tf2outpost.com/trade/27369638 Sold for Steaming Rag + 3.8 keys of sweets

Rag had no trade, presuming offered

X = 11*0.9 + 3.8*0.9

X = 13

Rag http://backpack.tf/item/1181413939

Sola http://backpack.tf/item/274068829

Stuff https://gyazo.com/080951c39bf44b8948a789ea3f532e74 http://backpack.tf/profiles/76561198095910357?time=1446710400&compare=1446624000

Mini for Rag

http://backpack.tf/vote/id/5674ea00dea9e91e147f766c B/O of 11 keys, using 11