FWC conditions of October 2018  Contract number: [ complete ]  At the anniversary date, the contracting authority must communicate the final index for the  month in which the request was received, or failing that, the last provisional index available for  that month. The contractor establishes the new price on this basis and communicates it as soon  as possible to the contracting authority for verification. The contracting authority purchases on the basis of the prices in force at the date on which the  specific contract enters into force. The price revision is calculated using the following formula:  Ir  Pr = Po x ( — )  Io  where:  Pr = revised price;  Po = price in the tender;  Io = index for the month in which the FWC enters into force;  Ir = index for the month in which the request to revise prices is received.  Payments are made in euros, unless another currency is provided for in Article I.7. The date of payment is deemed to be the date on which the contracting authority's account is  debited.  The contracting authority makes any conversion between the euro and another currency at the  daily euro exchange rate published in the Official Journal of the European Union, or failing  that, at the monthly accounting exchange rate, as established by the European Commission and  published on the website indicated below, applicable on the day when it issues the payment  order. The contractor makes any conversion between the euro and another currency at the monthly  accounting exchange rate, established by the Commission and published on the website  indicated below, applicable on the date of the invoice.  http://ec.europa.eu/budget/contracts_grants/info_contracts/inforeuro/inforeuro_en.cfm The costs of the transfer are borne as follows:  32  (a) the contracting authority bears the costs of dispatch charged by its bank;  II.21.4. Costs of transfer  II.21.3. Conversion  II.21.2. Currency  II.21.1. Date of payment  II.21. PAYMENTS AND GUARANTEES 