(10)Regulation (EU) 2017/1129 contains several provisions that refer to the total consideration of certain offers of securities to the public, including ongoing offers of securities to the public, to be calculated over a period of 12 months. To provide clarity to issuers, investors and competent authorities, and to avoid divergent approaches across the Union, it is necessary to specify how the total consideration of those offers of securities to the public are to be calculated over a period of 12 months.