Change in domain of the table

Hi All,

There is a custom table, where in I need to change the domain of one of the fileds.

One of the currency fields was having WERT7, I need to changed it to WERTV12, to prefix +/- signs.

The table is already in production system with data.

My question is if I change the domain, will it impact the consistency of data ? Should I need to adjust the table (se14)?

Please advise.

Thanks,

Priya