Complex sentence: The commission will consist of a number of departments headed by the commissioners and its lower rank staff will be composed of 84% Russian officials, 10% Kazakhs and 6% Belarusians, proportional to the populations of the member states.
Split into simpler sentences: The commission will consist of a number of departments headed by the commissioners. The lower rank staff will be composed of 84% Russian officials, 10% Kazakhs and 6% Belarusians, proportional to the populations of the member states.