Hello!
The correct answer is: 10%
De todos los hispanos en ee.uu., 10% son de Puerto Rico.
Off all hispanics in the U.S., 10% are from Puerto Rico.
Why?
According to the lasts population census (2017-2018), there are about 55 million Hispanics living in the U.S.A. and there are 5,5 million of Puerto Ricans, which represents about 10% of the 55 million Hispanic population.
The highest percent belongs to the Mexicans who represents about 63% of Hispanics living in the U.S.A.
Have a nice day!