Resuggestion https://backpack.tf/suggestion/5f7de793ceba9362376cf6cb

https://marketplace.tf/items/tf2/150;5;u90

$229.99 / $1.84 = 124.99 keys (120 key buyout)

$120 qs, i missed it :(

$199.99 = 109 keys

Proof by https://backpack.tf/u/76561198085880346

https://backpack.tf/profiles/76561198090147535#!/compare/1598313600/1598400000 - Bulk

https://backpack.tf/profiles/76561198059864439#!/compare/1599264000/1599350400 - ? Keys

https://backpack.tf/profiles/76561198154211785#!/compare/1598313600/1598486400 - Bulk

https://backpack.tf/profiles/76561198137566942#!/compare/1598918400/1599004800 - Sold for 94 Keys + 1 key in refined (confirmation in previous suggestion)

https://backpack.tf/profiles/76561198804015732#!/compare/1599955200/1600041600 - The person who paid 94 dumped it for $120

https://imgur.com/a/8vM6iNx - 125 had a buyout of 120 Keys

https://bot.tf/stats/listings/4O98JK5G - The ? Keys had a buyout of 95

https://bot.tf/stats/listings/Y9QD8ZK0 - The first Bulk sale had a buyout of 100 Keys

Going with 95-120 keys