Complex sentence: The racial makeup of the city was 97.47%, White all of them related, 0.69% African American, 1.38% from other races, and 0.46% from two or more races.
Split into simpler sentences: The racial makeup of the city was 97.47%, all of them related. White, 0.69% African American, 1.38% from other races, and 0.46% from two or more races.