Sentence Correction (SC) | Re: About 70 percent of the tomatoes grown in the United States

Example1: 70 % of the students(plural)are weak in verbal.
The norm is that percent of a plural is plural
Example 2; 70% of the class(singular) is weak in verbal
Percent of a singular is singular.

Percent of tomatoes come because tomatoes are a plural
percent of water come or comes? Percent of water comes because water is singular.

Look at this Official example.

Over 75 percent of the energy produced in Francederives from nuclear power.
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