Hi
I'm not sure whether that will give you any more meaningful results than he current system.
Presumably you are earning money in your counrty of origin, which you have to pay your carrier charges in the currency they demand. E.G you operate in Europe, but use a US carrier. Your revenues will be in Euro, while your bills will be in USD.
The amount you it actually costs will depend on a number of factors:-
1. What rate your/their bank applies
2. The sell and buy exchange rate of the day.
3. Whether you pre-pay or post pay.
So given that any system cannot take into account all these different factors, you are best deciding on a pessimistic exchange rate, and converting your carrier rates into that currency. This should cope with most fluctuations, unless of course, you live in Zimbabwe.
Joe
|