Have you looked up the relationship between Potential and Field? What does it tell you? What does Potential Difference mean?
Would you need to do work (or get it out) to move a charge in the direction of a field? This is all good old book work and it would be better for you to look it up for yourself.
You should have more confidence. Did it seem too good to be true? :)
There are not many occasions where the Maths gives you the wrong answer. (It's probably more reliable than some old loony, answering you on PF.)