Help me out please - Brand valuation interbrand method

Hi everyone, I'm a senior from Vietnam major valuation. I'm looking for 7 factors to measure brand strength when using interbrand approach to value a brand. My supervisor told me that there are 100 multiples using for 7 factors but i can not find what that 100 multiples are. So i really need your help. Any references about 100 multiples to measure brand strength in interbrand methodology would be helpful for me. By the way, i wonder how do they get the score. Do they use statistical solution to get the score? If anyone knows, please help me out and i really appreciate this. Thank you.