Has anyone done the sums recently?.........Have i got this...

Has anyone done the sums recently?.........Have i got this correct ?........Roughly 3 million oz at lets say ( $1700, current price,..... less extraction/mining costs, $1000)....... =$700/oz profit, less annual operating costs, contingencies/ mishaps .....$20m . That adds up to perhaps around a npv of $1.8billion over 10 or 11 yrs.......and current mc $173m...... I have just been comparing this to other mid cap gold miners !. Thanks in anticipation!