It's 2020 and currency is now supported. There's still some relevance to this question, though.
In Hubspot properties, I see the options to format a number as "Formatted Number", "Unformatted Number", and "Currency" - which is cool, but I can't seem to tell the difference between Formatted and Unformatted numbers - documentation around that distinction doesn't exist or I can't find it.
In short, going back to the original question on this thread - can I format a number property as a percentage, or are we out of luck still?
@cre thanks for the explanation. At this moment in time you cannot make a field be a currency to see ‘$50,000’ instead of ‘50000’. This would be a nice feature to have and if you feel inclined you can add it to our ideas board if it isn’t already.
I believe that having an additional field, like "numberFormat" or just "format" (so that the same field can be used for other data-types, would be the best solution so that anyone can use the format they want. I.e. "£#,###.00".