Question: how to calculate percentage of marks in grade system in kerala?
Answer: Consider A+ 9 point A - 8 and B+ 7 points so and so.
Out of 10 subjects you scored 70 points.
Pass percentage will be like.
Point scored + [no of subjects /20.
So, if you scored 70 points.
Total pass percentage will be 70 = [10/2] = 75% your official pass percentage.