Thanks to Shuffle Spy for the help! :)

/

Marketplace sales:

https://marketplace.tf/items/tf2/538;5;u9

1. Sold on May 20th for 333.33 USD, keys were 1.88 USD, rounding to 177 keys.

2: Sold on May 12th for 300 USD, keys were 1.9 USD, rounding to 158 keys.

3: Sold on Apr 18th for 181.13 USD, was prob to a buy order considering buy orders are more than 200 USD now.

4: Sold on Apr 14th for 390 USD, keys were 1.75, rounding to 223 keys.

5: Sold on Apr 4th for 250 USD, keys were 1.72, rounding to 145 keys, using as an outlier because... Well, there's a quicksell coming up at around the same price.

6: Sold on Mar 7th for 150 USD, buy order

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Non-Marketplace sales:

1: https://backpack.tf/profiles/76561198310594866#!/compare/1585612800/1586217600 - 121 Keys

2: https://backpack.tf/profiles/76561198081752665#!/compare/1586131200/1586217600 - Quicksold for 140 Keys

3: https://backpack.tf/profiles/76561198054862332#!/compare/1586131200/1586217600 - MW Isotope Freedom Wrapped Rocket (no mini)

4: https://backpack.tf/profiles/76561198042177946#!/compare/1586822400/1586908800 - Dunno, the histories of both KEs shows that they went and came from different ppl.

5: https://backpack.tf/profiles/76561198190594053#!/compare/1590364800/1590537600 - Better for the Chiro Vene Beret.

6: https://backpack.tf/profiles/76561198047743975#!/compare/1590624000/1590796800 - 96 Keys + 5 Unusuals (ends up around 170 Keys)

7: https://backpack.tf/profiles/76561198879412409#!/compare/1586995200/1587081600 - Sunbeams Kiss King + Terror-Watt Pyromancer's + GE Wraith

mini for that last sale (Sale 7)

https://marketplace.tf/items/tf2/30313;5;u17 - The Sunbeams Kiss sold for $105.10 when Keys were $1.9 each (55 Keys)

https://backpack.tf/profiles/76561198452460180#!/compare/1589673600/1589760000 - The GE Wraith sold for 49 Keys

https://marketplace.tf/items/tf2/937;5;u9 - The GE Wraith also sold for $85.09 when Keys were $1.89 each (45 Keys)

https://marketplace.tf/items/tf2/316;5;u57 - The Terror-Watt Pyromancer's sold for $135.10 when Keys were $1.89 each (71 Keys)

55 + 47 + 71 = 173 Keys

Cutting out sales at 145 since a quicksell at 140 was sold. Lowest sell is then at 158 (Rounding to 160) and the highest is at 223 keys (Rounding to 225)