Article 47
Additional provisions for the calculation of benefits 1. For the calculation of the theoretical amount referred to in Article 46 (2) (a), the following rules shall apply: (a) where, under the legislation of a Member State, benefits are calculated on the basis of an average wage or salary, an average contribution, an average increase or on the ratio which existed, during the insurance periods, between the claimant's gross wage or salary and the average gross wage or salary of all insured persons other than apprentices, such average figures or ratios shall be determined by the competent institution of that State solely on the basis of the insurance periods completed under the legislation of the said State, or the gross wage or salary received by the person concerned during those periods only; (b) where, under the legislation of a Member State, benefits are calculated on the basis of the amount of wages or salaries, contributions or increases, the competent institution shall determine the wages or salaries, contributions and increases to be taken into account in respect of insurance periods completed under the legislations of other Member States on the basis of the average wages or salaries, contributions or increases recorded in respect of the insurance periods completed under the legislation which it administers; (c) where, under the legislation of a Member State, benefits are calculated on the basis of a standard wage or salary or a fixed amount, the competent institution shall consider the wage or salary or fixed amount to be taken into account by it in respect of insurance periods completed under the legislations of other Member States as being equal to the standard wage or salary or fixed amount or, where appropriate, to the average of the standard wages or salaries or fixed amounts corresponding to the insurance periods completed under the legislation which it administers; (d) where, under the legislation of a Member State, benefits are calculated for some periods on the basis of the amount of wages or salaries and, for other periods, on the basis of a standard wage or salary or a fixed amount, the competent institution shall, in respect of insurance periods completed under the legislations of other Member States, take into account the wages or salaries or fixed amounts determined in accordance with the provisions of (b) or (c) or, as appropriate, the average of these wages or salaries or amounts; where benefits are calculated on the basis of a standard wage or salary or a fixed amount for all the periods completed under the legislation which it administers, the competent institution shall consider the wage or salary to be taken into account in respect of the insurance periods completed under the legislations of other Member States as being equal to the notional wage or salary corresponding to that standard wage or salary or fixed amount. 2. The legislative provisions of a Member State concerning the revalorisation of the factors taken into account for the calculation of benefits shall apply, as appropriate, to the factors to be taken into account by the competent institution of that State, in accordance with the provisions of paragraph 1, in respect of the insurance periods completed under the legislations of other Member States. 3. If, under the legislation of a Member State, the amount of benefits is determined taking into account the existence of members of the family other than children, the competent institution of that State shall also take into consideration the members of the family of the person concerned who are residing in the territory of the competent State.