Using percent proportion: What percentage of the people disapprove?

A poll was conducted by a local newspaper asking if a governor was doing a good job.   6,000 people were polled.  If 2,400 people said they ...

A poll was conducted by a local newspaper asking if a governor was doing a good job.  
6,000 people were polled.  If 2,400 people said they approved the governor’s job, 
What percentage of the people polled disapproved?