Complex sentence: Of its 424 students in four grades in 2011,80% were Catholics, 52% were Caucasian, 14% were African American, and 12% were Multi-Racial.
Split into simpler sentences: Of its 424 students in four grades in 2011,80% were Catholics. Racial and ethnic backgrounds-52% were Caucasian, 14% were African American, and 12% were Multi-Racial.