Media Campaigns have the following three fields which allow you to calculate the annual turnover for each account in you company currency:
- Exchange Rate
- Exchange Rate Advertiser
- Exchange Rate Agency
All three Exchange Rate fields get filled at creation of the media campaign (and only then!) with the current exchange rate which you have entered in the company 7.1.9 Currency Settings. The Turnover Amount (converted) and Turnover Amount Net (converted) fields calculate the revenue using that exchange rate without showing the currency.
Manually entered values are not recognized. Also changes to the currency at a later stage are not getting recalculated.