80 percent marks in class 10+12(average) for iima for science stream

i am getting avg of 80.6 if i take main 5 subjects of class 10th and class 12 all 5 subjects
but if i take 6 subjects(including additional subject) of class 10 and class 12th all 5 subjects i am getting average of 79.815
so am i fulfiling the science stream criteria of iima