What do the percentages mean on quiz answers?

The percentages represent how many learners in your group have chosen each answer. If you select a correct answer, your answer will become a solid green box after submitting your answers. If you select an incorrect answer, your answer will become a solid red box, and the correct answer will have a green outline. How many answers you get correct and the points you have earned for the quiz will be shown at the bottom of the quiz.