answered 8/12/2010 What Is The Equivalence Formula Used By Ibcc To Calculate Equivalence Of O Level? It used to be 85% for A grade,75% for B grade,65% for C n henceforth.But from now (2010) A* grade is being introduced,I'm not sure how that will be graded but from sources online,it says A* will be given 90% and other grades grading will stay same.
