Excluding all other sales due to them being either too low for current sell orders or too high for current buy orders. Ignoring the sale for 91 keys because not only is it an outlier sale, it was likely a quicksell + less than the current buy orders. Going with 109 - 121 keys.
https://backpack.tf/classifieds?item=Catastrophic%20Companions&quality=11&tradable=1&craftable=1&australium=-1&killstreak_tier=0
Buy Orders start at 95.26, ~95 keys.
Sell Orders start at 130 keys.
Bot.tf Sale:
https://ibb.co/QkXf8J7
1 Sold for 109 keys.
Marketplace.tf Sales:
https://ibb.co/sRP7nQb
1 Sold for $227.50/ 1.88 = 121 keys.
1 Sold for $222.22/ 1.85 = 120 keys.
2 Sold for $223.50/ 1.87 = 119.51, ~120 keys.
1 Sold for $205.00/ 1.84 = 111.41, ~111 keys.
SCM Sale:
https://ibb.co/K59MYP2
1 Sold for $212.76/ 2.33 = 91.31, ~91 keys.
Excluding all other sales due to them being either too low for current sell orders or too high for current buy orders. Ignoring the sale for 91 keys because not only is it an outlier sale, it was likely a quicksell + less than the current buy orders. Going with 109 - 121 keys.