Study

Item 1

https://backpack.tf/item/2563340131

Sale 1

https://backpack.tf/profiles/76561198080542127#!/compare/1605398400/1605484800

https://backpack.tf/profiles/76561198080179568#!/compare/1605312000/1605398400

Sold for 8 keys 45.44 ref

Taking 9 keys

Sale 2

https://backpack.tf/profiles/76561198080179568#!/compare/1606089600/1606176000

https://backpack.tf/profiles/76561198054270952#!/compare/1606176000/1606262400

https://prnt.sc/xtiplj - 12 keys

Sale 3

https://backpack.tf/profiles/76561198054270952#!/compare/1608768000/1608940800

https://backpack.tf/profiles/76561198286944082#!/compare/1608940800/1609718400

Sold for:

Stormy Storm Big Country - https://backpack.tf/suggestion/5fbb58fea06b0453d7478ba6 - 14 keys

Dad Duds - https://gladiator.tf/listings/5fe50b8fd8f48239fa98551f - 1 key 10 .11 ref

Taunt: The Schadenfreude - https://gladiator.tf/listings/5fe52af9215c6130098c3045 - 1.5 keys

14 + 1.2 + 1.5 = 16.7 keys

https://gladiator.tf/listings/5fe50b8005a7b00001e0aa1b - buyout 17 keys

Rounding up to 17 keys

Item 2

https://backpack.tf/item/2304257990

Sale 4

https://backpack.tf/profiles/76561198131526809#!/compare/1606780800/1607558400

https://backpack.tf/profiles/76561199004803157#!/compare/1606694400/1606780800

45.33 ref matches

Sale 5

https://backpack.tf/profiles/76561199004803157#!/compare/1607040000/1607126400

https://backpack.tf/profiles/76561198342059877#!/compare/1606608000/1607990400

Untrace

Item 3

https://backpack.tf/item/2198381851

Sale 6

https://backpack.tf/profiles/76561198072251120#!/compare/1610841600/1610928000

https://backpack.tf/profiles/76561198289040457#!/compare/1610755200/1610841600

Backpack buy

Sale 7

https://backpack.tf/profiles/76561198289040457#!/compare/1611014400/1611100800

https://backpack.tf/profiles/76561199085116273#!/compare/1611014400/1611100800

Bulk qs

Sale 8

https://backpack.tf/profiles/76561199084784906#!/compare/1611100800/1611187200

https://backpack.tf/profiles/76561198091502579#!/compare/1611100800/1611187200

Bulk

https://gladiator.tf/listings/6008d83407de56b1d19ca686 - buyout 9.5 keys

Taking 9.5 keys

Sales

9, 12, 17, 9.5

Current Listings

https://prnt.sc/xtj1p1

4 days at 17 keys

Buyers at 9.6 keys

Taking 12 - 17 keys here

Thanks Xerg:

new sales:

https://marketplace.tf/items/tf2/382;5;u58

$29.99 / $2.10 = 14.28 keys

https://gladiator.tf/listings/602a6a1979d58b286481c344

https://backpack.tf/profiles/76561198002757046#!/compare/1613347200/1613433600

12 pure

With the lower sales, I would call 17 high here and go 12 - 14

Taking 12 – 14 keys here