Why can't I get a response to my question about Marketpress??

I initially posted my thread here on how to list a product's cost in Cube points, and not dollars. It was then moved to the suggestion forum where it now remains.

https://premium.wpmudev.org/forums/topic/price-listed-in-points

However nobody bothers to answer my question there, so here it is again. Until you add this option I want to add it myself. Please provide an answer to the following question. Thanks in advance.

How can I create a custom currency called Cube Points?

I can see where I need to add a new currency to the array which I found in marketpress-data.php

But I'm unclear what these numeric values represent. This for example is the Brazilian entry.
"BRL"=> array("Brazil, Reais", "52, 24"),

Some entries have 1 number, some have two, and some even have 3 or 4.