Update on my old Price suggestion, thanks Xergoyf for additional proofs.

Marketplace: https://marketplace.tf/items/tf2/30918;5;u3005

• March 1: 17.5 / 1.72 = 10.17 or 10k
• March 12: 35 / 1.72 = 20.35 or 20k
• March 22: 19.44 / 1.68 = 11.57 or 12k
• March 24: 37 / 1.68 = 22.02 or 22k
• April 1: 37 / 1.88 = 15
• April 3: 17.9 / 1.7 = 10.5 or 11k
• April 12: 40 / 1.71 = 23.4 or 23k
• April 22: 40 / 1.75 = 23
• April 24: 40 / 1.8 = 22
• May 1: 40 / 1.85 = 21.6 or 22k
• May 24: 20.12 / 1.88 = 10.7 or 11k
• May 25. 49.99 / 1.88 = 26.5 or 27k
• May 30: 43 / 1.96 = 22
• June 22: $24 / $1.98 = 12.12 or 12k
• June 23: $20.12 / $2.00 = 10.06 or 10k
• June 26: $24.03 / $1.99 = 12.08 or 12k

Last three sales is at the price of buy orders.

Only known sale in the SCM is on May 27: 24.31 - 15% = 21.72 / 2.01 = 10.8

Bot.tf sales:

https://imgur.com/a/7KH1Wdz

2 sales @ 17

1 buy @ 12.5

Current in-sale(s) on classified are ranging from 23, 27(2x) and 28 keys respectively but still stayed at the 20's and buy sales are in the range of 5-15 keys and majority are at quick buy prices...

Classified: https://imgur.com/a/367QzwI

Bot at 23 is a new seller: https://bot.tf/stats/listings/MNRJXZ2Q wasn't even there in most recent snapshot, aged sellers at 27

To summarize sold:

• 10 (x2)
• 11 (x2)
• 12 (x3)
• 15
• 17 (x4)
• 20
• 22 (x4)
• 23 (x2)
• 27

17-22 keys range is a right fit for the price....