Team Fortress 2
Counter-Strike: Global Offensive
Let's clean up some more decimals.
Sale 1) Sold for a Tesla Coil Deep Cover Operator (38.5 Keys) ~19 Keys of Items + Nuts Toe + Steaming Mongolian (8 Keys)?
Supports the high end. Not including this sale since it goes Outdated in a week. Also, I can't figure out if the Toe/Mongolian were involved.
https://backpack.tf/suggestion/5be50ff244325a3cd5416ce0 - 8 Keys
Sale 2) Sold for $135 when Keys were ~$1.88 each
135 / 1.88 = 71.8, which rounds to 72 Keys
Sale 3) Sold for $105 when Keys were ~$1.88 each
105 / 1.88 = 55.85 Keys. Low outlier.