Currency formatting in charts

I could not find anything on currency formatting. nor could I find a chart with currency formatting in any of the examples. I also played with Config and looked for formatting, but couldn't find anywhere.

As an alternative, you could format the data as currency (e.g. list.CurrencyValue.ToString("C") ), but this produced completely different problems because you then pass a string to the chart instead of a number.

Does anyone here know or is there really a formatting missing in charts? And if so, will this be fixed at some point or will it stay like this?

Regards
perfect-code