1. The price of a derivative referred to in field 48 in Table 2 of the Annex shall be specified as follows:
((a))
in the case of swaps with periodic payments relating to commodities, the fixed price;
((b))
in the case of forwards relating to commodities and equities, the forward price of the underlying;
((c))
in the case of swaps relating to equities and contracts for difference, the initial price of the underlying.
2. The price of a derivative shall not be specified in field 48 in Table 2 of the Annex when it is specified in another field in Table 2 of the Annex.