https://backpack.tf/classifieds?item=Maul&quality=1&tradable=1&craftable=1&australium=-1&killstreak_tier=0

Buy orders start at 6.24, ~6.25 keys.

Sell orders start at 7.08, ~7.1 keys.

No bot.tf sales in 30 days.

Marketplace.tf Sales:

https://ibb.co/J2VbbCP

1 Sold for $12.00/ 1.89 = 6.34, ~6.35 keys.

1 Sold for $14.50/ 1.85 = 7.83, ~7.85 keys.

1 Sold for $11.50/ 1.88 = 6.11, ~6.1 keys.

SCM Sales:

https://ibb.co/Ydqzg80

1 Sold for $13.87/ 2.33 = 5.95 keys.

1 Sold for $16.35/ 2.33 = 7.01, ~7 keys.

1 Sold for $14.00/ 2.32 = 6.03, ~6.05 keys.

1 Sold for $16.50/ 2.29 = 7.2 keys.

1 Sold for $16.36/ 2.30 = 7.11, ~7.1 keys.

Excluding all other sales due to them being either too low for current buy orders or too high for current sell orders. Going with 6.35 - 7.1 keys.