This is for Acara:

You have to go to one of the three Altadorian Shops. It is either in Exquisite Ambrosia, Illustrious Weaponry or Magical Marvels.

Go to each shop in turn.


Example:
Neopian Inflation is currently at 2.52%

You need to make the amount of NP you have match the rate of inflation (ignore the decimal point). So in the example above, you need to put all your neopoints in the bank except 252NP like the picture below.

If you have picked the correct shop, an item featuring some scales will appear. If the item did not appear, go to the next shop. If the inflation rate is different, make the change. The item that will appear depends on which shop it is:



Once you have found your item, click on it. (Please note, you did not actually buy the item, so it will not appear in your inventory.)

Hope this help.