What portfolio tracker are you talking about? Do you know if your tracker could set what you want to base your portfolio on? Whether you want total savings in this coin (plus the conversions of the currencies to that specific capital) or whichever you want to put?

An additional question is that where do you put your coins in the first place? Is that the place where you track it as well?

If you use a reputable hardware wallet, you wouldn't have a hard time with it.