Let’s see where this goes. Feedback welcome!

Only 2 usable sales

Sale 1: (OUTLIER SALE)

Sold for 200 keys

Buyer: https://backpack.tf/profiles/76561198229872056#!/compare/1547856000/1547942400

Seller: https://backpack.tf/profiles/76561198095902384#!/compare/1547856000/1547942400

PRICE: 200

Sale 2:

Sold on SCM for $301

https://steamcommunity.com/market/listings/440/Unusual%20Defragmenting%20Hard%20Hat%2017%25

Buyer: https://backpack.tf/profiles/76561198095902384#!/compare/1546905600/1547164800

Price of Keys that day:

https://steamcommunity.com/market/listings/440/Mann%20Co.%20Supply%20Crate%20Key

301 / 2.37 = ~127

PRICE: 127

Sale 3:

Sold for a H. Ghosts TC and V. Circle Vanquisher

Buyer: https://backpack.tf/profiles/76561198052793694#!/compare/1546128000/1546214400

Seller: https://backpack.tf/profiles/76561198125791160#!/compare/1546041600/1546128000

TC Mini:

https://backpack.tf/suggestion/5c3bd81e44325a31dc78edf2

Vanquisher Mini:

https://backpack.tf/suggestion/5c79c24267807202e97bef50

167.5 + 19.5 = 187

PRICE: 187

Sale 4: (BULK SALE - NOT USABLE)

Sold with a key and a H. Ghosts Mining Light for a G. Energy Mining Light

Seller: https://backpack.tf/profiles/76561198229872056#!/compare/1541894400/1545177600

Low sale: 127

High sale: 187

FINAL: 127-187