Surprisingly popular
Let's look at another toy example, using made-up numbers:Q: Is the earth flat?    Yes: 10%
    No:  90%

Q: What do you think most people will respond to that question?    Yes:  3%
    No:  97%

Analysis:    Yes: 10% -  3% =  7%
    No:  90% - 97% = -7%

Conclusion:The earth is flat, I guess ;)