DislikedYea no problem its something called interest parity condition.
It involves using current interest rates to calculate future exchange rates between two countries.
The formula is: E=(1+it)^n/(1+it)^n...Ignored
•Balance of Payments Model
•Purchasing Power Parity Model
•Monetary Model
•Real Interest Rate Differential Model
•Asset Market Model
•Currency Substitution Model
Interesting thing is these all have different conditions and you will not get exact value applying the different models.
So If Interest rate Parity Model gives you 1.17xx for E/U .. Purchasing Power Model may give you a lower value considering the Inflation of both of the countries.
Where Relative PPP would be higher than the Absolute PPP but IRP then giving higher value than Relative PPP!
Conclusion : This is again upto you where you feel comfortable considering a model for you.