I can not figure out how to change the decimal from a point to comma. On the actual 12c, I understand you hold the period while you turn it on, but I can't figure how to do it on the application. Can you help me?
In order to change the decimal comma to the period, you need to have the application open. After you did this, tap on the option button from your phone to enter the Options menu. From there, tap on Decimal Mark and select Comma.