Iron Ore Future Price, page-63

back of coaster calc but will give you an idea
62% US$123
123/62.5=1.968+0.14(lump premium)=2.108x62.5=131.75+4.00(1% grade premium)=135.75-20(shipping costs)-10(FOB ie othe exp)=105.75/0.73(exchange rate)=AUD$144.86-120(mining and transport)=24.86x0.7(profit share)=17.4x57000(tonnes per vessel)=AUD$992034x7=6944239(per quarter) approx at these levels.
I am always glass half full so profit at current levels may be around 4-5mill per quarter realistically.
just my thoughts not advice but have been buying bits here and there.