>At a cash cost of $A20 in gold adjusted terms we are talking a...

>At a cash cost of $A20 in gold adjusted terms we are talking a cash cost of A$1,156 per ounce.

That is before other costs are added to it so it would actually be far higher than $1156. Cash costs from the most recent presentation averaged $21.

Then add:-

Mining cost A$/tonne ore
~$7.00 - $8.00
Processing cost A$/tonne
~$13.00

This total's another approx amount of $20 costs on top of the 20-21 cash costs which would mean another $1156 costs to add in gold terms.

That means that this gold mining company has total costs of $2312/ounce just using your metrics SP.