How to Distinguish Between Paid and Unpaid Rollover Orders in Analytics

I need to do a simple pie chart showing paid vs. unpaid rollover orders in Analytics. I am able to pull out unpaid rollovers, but can't find a way to identify paid rollovers. The solicitor is, for the most part, "Rollover", but I'm told that may change to the current operator once the order is processed. Further, it would appear that many different source codes have been used on new subscription orders, so that's not an option.

Is there some intrinsic way to identify a paid rollover order?

Thanks in advance!