Resuggestion, thanks to Blaze & Xerogyf for the info!

Sale 1:

https://backpack.tf/profiles/76561198120672630#!/compare/1583539200/1583625600

https://backpack.tf/profiles/76561198331167728#!/compare/1583539200/1583625600

sold for Duped GBH Milkman

nothing good, sales end up lower than buyers / far away from other sales.

Sale 2:

https://backpack.tf/profiles/76561198331167728#!/compare/1583539200/1583625600

https://backpack.tf/profiles/76561198147857818#!/compare/1583539200/1583625600

Sold for 86 keys

sale 3:

https://backpack.tf/profiles/76561198147857818#!/compare/1584489600/1584576000

https://backpack.tf/profiles/76561198331167728#!/compare/1584489600/1584576000

Sold for Harvest Bloke's(92.5) + Steaming Hermes(8.5)

Total is 101 keys

sale 4:

https://backpack.tf/profiles/76561198331167728#!/compare/1587600000/1587686400

https://backpack.tf/profiles/76561198928347702#!/compare/1587600000/1587686400

Sold for 80 keys

Total sales @:

80, 86, 101 keys

Xerogyf’ sPart:

New sale @ 100 pure

https://backpack.tf/profiles/76561198928347702#!/compare/1593388800/1593475200

https://backpack.tf/profiles/76561198109149008#!/compare/1593475200/1593561600

https://imgur.com/a/fbV1oAc

Sales 2-3 were tradebacks and are now outdated, I don't think they should hold much weight here.

80 was sold to a buy order

https://bot.tf/stats/listings/M19X2LGO - Buy order at 80 here.

Normally I would say exclude 80 since it was sold to a buy order, but 1) pingus was selling for as low as 85 (see bot.tf snapshot above), and 2) the buy order was probably just created the day the sale happened, as there are no bot.tf snapshots before (only started being generated since Uncle Dane's Dispenser (bot.tf bot) created the buy order. Its possible that the buy order was created in response to the 85 seller in hope that they would sell to them, which they did.

80 - 100 is probably the best way to go here

Blaze’s Part:

this will need to be re-suggested at 80-100 keys given the new data provided above