I found that if I stare at the 20,000 ounces long enough I can almost turn the 2 into a 9 ... problem solved!!
Well I think I need a new abacus.
400kt @1.4g/t = 20,000 oz contained gold as per announcement.
31.1 g per Troy oz divided by 1.4 g/t = 22.214 t per oz.
400,000 divided by 22.214 = 18,006 oz.
So where has my abacus gone wrong?
Jim.