New Post: Word ''from'' before price

Hello.

Question. There is a has models/has options TAG TEST in productdetail and productlist template, which shows word ''from'' before price number.
But – if models have same price, ''from'' is not needed. Just couldn't find out how to set TAG TEST, to show ''from'' only if product models have different prices.

Thank you for any kind of advice.

Regards, J.