Hi,
No, I don’t really mean to put the € into a separate column. The alternative would be to split calculation and formatting/display. This would not only add more flexibility, it would also make it much easier for you to maintain the formulas and calculations. The end result would still be a perfectly-looking currency value in a single cell, with the example from above.
Another option would of course be to do all these calculations offline, e.g. in Excel, and then save the table to a CSV file (with just the formatted calculation results) which you then import into TablePress.
Unfortunately, this is not something that I could develop even with compensation, as I simply don’t see a good way to do it right now, sorry.
Regards,
Tobias