1. How much rand revenue per ounce was Harmony generating on September 11, 2001? Three years later?
2. The average exchange rate during 2001:Q2 was R8.04/$; in 2004:Q2, it was R6.60/$. Compare Harmony's earnings per ounce in rand terms during 2001:Q2 with the same figure in 2004:Q2.
3. Given the exchange rates in question 2, by how much would Harmony have to reduce its rand costs per ounce in 2004:Q2 in order to make the same rand profit per ounce it was earning in 2001:Q2?