If the currency isn’t changing then just add a static ‘$’ in the formula eg.
I’m not sure if you can access enums (but that would be interesting if someone has a method…). I guess you could create a variable in the backend and send it with the response. But then don’t have access to the list when you are creating a new record.
I would use the Cell Select - set the initial value to the data you are retrieving. Create a variable array [“Hourly”, “Monthly”, etc.] and bind that variable to the options. eg.