Can I change the currency?

Yes you can.

The default setting (on your profile page) is set to show these in New Zealand Dollars (NZD) and percentages. 

When you're logged in:

  1. click on you name (in the top right-hand corner) to access your profile page, and
  2. in the third box you can switch your currency between New Zealand Dollars (NZD) and Australian Dollars (AUD).