Updating

Marketplace.tf Sales:

https://marketplace.tf/items/tf2/30525;13;strange

$32.83/1.70=~19.3 Keys (Jan 20th)

Median Price of Keys that day was $1.70

SCM Sales:

https://steamcommunity.com/market/listings/440/Strange%20Haunted%20Creature%27s%20Grin

https://steamcommunity.com/market/pricehistory/?appid=440&market_hash_name=Strange%20Haunted%20Creature%27s%20Grin

$34.27/2.23=~15.4 Keys (Jan 7th)

$38.20/2.26=~16.9 Keys (Jan 14th)

$26.21/2.23=~11.8 Keys (Jan 19th)

$25.84/2.19=~11.8 Keys (Jan 23rd)

$37.30/2.15=~17.3 Keys (Feb 12th)

Total Sales:

11.8, 11.8, 15.4, 16.9, 17.3, 19.3

Excluding Sales @11.8 as they appear to be buyorder dumps, Current Sellers on SCM @17.3 Keys, prices of keys are unstable so it's bound to change