Sell Orders start at 6.57, ~6.55 keys. I'm excluding the 6.28 keys sell order due to being an obvious quicksell order, and it's also the only sell order that isn't at least 6.57, ~6.55 keys.
Excluding every other sale aside from the two sold for 6.35 keys, as literally every other sale I could find in the past 30 days was either too high for the average sell orders, or too low for the average buy orders. Going with 6.35 solid.
https://backpack.tf/classifieds?item=Puffy%20Provocateur&quality=11&tradable=1&craftable=1&australium=-1&killstreak_tier=0
Buy Orders start at 6.06, ~6.05 keys.
Sell Orders start at 6.57, ~6.55 keys. I'm excluding the 6.28 keys sell order due to being an obvious quicksell order, and it's also the only sell order that isn't at least 6.57, ~6.55 keys.
Bot.tf Sales:
https://ibb.co/XDt1Kh4
2 Sold for 7.27, ~7.25 keys.
Marketplace.tf Sales:
https://ibb.co/gTH41rp
None of these sales are viable for usage, due to all of them being at least 7 keys.
Steam Community Market Sales:
https://ibb.co/n3GDknJ
1 Sold for $12.90/ 2.30 = 5.61, ~5.6 keys.
1 Sold for $16.99/ 2.23 = 7.61, ~7.6 keys.
1 Sold for $15.99/ 2.24 = 7.13, ~7.15 keys.
1 Sold for $12.96/ 2.23 = 5.81, ~5.8 keys.
1 Sold for $16.27/ 2.25 = 7.23, ~7.25 keys.
1 Sold for $15.33/ 2.23 = 6.87, ~6.85 keys.
1 Sold for $12.78/ 2.30 = 5.55 keys.
2 Sold for $14.70/ 2.32 = 6.33, ~6.35 keys.
1 Sold for $13.01/ 2.35 = 5.53, ~5.55 keys.
1 Sold for $16.33/ 2.35 = 6.94, ~6.95 keys.
Excluding every other sale aside from the two sold for 6.35 keys, as literally every other sale I could find in the past 30 days was either too high for the average sell orders, or too low for the average buy orders. Going with 6.35 solid.