The %CORRECT_SCORE% variable displays the percentage of correct answers given by the user. For e.g., if there are 2 questions in the quiz and the user gives 1 right answer out of those 2. Then the variable will show the value 50. If you use the above variable like this %CORRECT_SCORE%% then it will apprehend ‘%’ sign at the end of the value like 50%.
The %POINT_SCORE% variable display the points as per the answer recorded by the user. For this you just need to assign points to the answer fields.
Hope this helped to resolve your query.