$1 billion NPV. When?, page-5

Does anyone want to take a crack at calculating Ammaroo's current NPV?

Using the feasibility study's NPV price sensitivity chart I get an extra $321mil for the increased rock phosphate price. And an additional $77.92mil for the lower Aussie dollar. Together with the base case $344mil I get a total current NPV of $742.92mil.

I used US$102.50 for the current Phosrock price and today's AUD USD exchange rate of 0.7135

Some feedback on this would be welcome.

Here's the FS chart I used.