In marksheet only total marks of all the three years are given. Total aggregate percentage is not declared.
You should calculate it by own and for this you need to calculate total marks and divide it by 8 as because total papers in graduation is 8 including all the three years. But you should not add 5th subject of 3rd year along with excluding 3 subsidiary papers of 1st and 2nd year.

Let me clear it-
1st year-
Paper I- 65
Paper II- 72
Total- 137

2nd year-
Paper III- 75
Paper IV- 69
Total- 144

3rd year-
Paper V- 76
Paper VI- 79
Paper VII- 71
Paper VIII- 81
Total- 307

Aggregate marks- 307+144+137 = 588
Now, 588/8= 73.5%