Official Exchange Rate is the weighted average price of peso-dollar exchange operations, spot or cash, performed in the FEM during the previous bank working day, and which have been reported by banks or other entities making up the FEM, as indicated in Circular N° 922 of August 14, 2013. For the observed dollar for 10, 11, 14, 15 and 30 September 2020, the operations of Banco Estado used in the calculation only considered those between banks (inter-bank)..