In the 'Investments' tab in BT Pay you have a chart that shows your total RON-equivalent investments, both in absolute terms and as a percentage. 

Below the chart you have a list of all the funds in which you have holdings, and there you can see the fund's currency evolution both in absolute value and percentage. 

In addition, by clicking on each individual fund, you can see graphs showing the evolution for 1, 3 and 5-year periods.