Swap is calculated by taking the difference between the respective interest rates in the currency pair being traded and adding FxPro's commission fee for rolling over the position to the next trading day. The result can either be a positive figure owed to the client or a negative figure owed by the client.
Swap is calculated from Monday to Friday at 23:59 server time. The figure is tripled on Wednesday to account for only being calculated once between Friday and Sunday.
Swap fee = [(one pip / exchange rate) X trade size (lot size) X swap value in points] / 10