Final answer:
The specific percentage of Marine Corps officers and NCO's who died during the battle of Chapultepec is not available in the provided information, and additional research into historical sources is needed.
Step-by-step explanation:
The question about the percentage of Marine Corps officers and NCO's (Non-Commissioned Officers) who died during the battle of Chapultepec pertains to an important event in military history.
However, none of the provided reference information contains specific figures for the battle of Chapultepec. It does, on the other hand, share valuable context about the losses and sacrifices made by the Marine Corps and other military forces in various battles, such as the high casualties at Iwo Jima and Okinawa during World War II, indicating the intense nature of those conflicts and the heavy toll on the United States Marine Corps.
For factual accuracy, it would be necessary to consult additional historical sources specific to the Battle of Chapultepec to answer the percentage of Marine officers and NCO's who perished in that engagement.