Equivalency issue.. Help..

[papajohn]

Please anyone calculate my O level grade to metric marks as issued by IBCC board.
My grades are
A
A
A
B
B
C
C
C
Please tell me hurry..

 

[Nibz]

675 out of 900.
That's 75%.

 

[papajohn]

675 out of 900.
That's 75%.

Thanks dude for your response