The exchange rate is calculated using the prevailing bank rate at the time of conversion. You can view the exchange rate by clicking that month's earnings line item in your Payment History page.
JonSimmonds
9:34 pm on Mar 31, 2009 (gmt 0)
The exchange rate they used appears to be correct, problem is since they took it the £ has rose slightly compared to the $, but its all swings and roundabouts in the long run, as in previous months the exchange rate droped since it was calculated and the ££ in my bank.