required rate of return being 4.21%,

NPV of building a crusher and 13-kilometre conveyor is $479,603.47, while contracting BHP is $5,430,572.93.

Describe your predictions on iron ore prices. Assume due to some event (maybe related to your predictions), the price of iron ore will decrease by 10% per annum during the lifetime of the project. Assume this affects revenue in a similar way, would this change your previous analysis? Describe?