Recital 51

Transparency is an important principle for ensuring that the compensation requested by a data holder is reasonable, or, if the data recipient is an SME or a not-for-profit research organisation, that the compensation does not exceed the costs directly related to making the data available to the data recipient and is attributable to the individual request concerned. In order to put data recipients in a position to assess and verify that the compensation complies with the requirements of this Regulation, the data holder should provide to the data recipient sufficiently detailed information for the calculation of the compensation.