How does accept rate work?
What if I have a question with no answers? If I don't receive an answer, will it affect my Accept Rate?
No. It does not count questions with no answers. Look at the accept rate of this OP's question. It's accept rate is 40%. Now hover to his accept rate it shows the following tool tip:
Now look at his questions tab. There are 13 questions. Where three questions have no answers. So accept rate is counted without questions with no answers.