I buy my components and cables based on the price performance ratio or 'sweet spot' of the line up that is still compatible with other components. If it means the proportion of money spent is high or low from the perceived norm it is no matter, I think it is almost impossible to put a percentage on any components cost ratio - especially lower priced items (for instance a $300 amp with $300 wire seems perfectly reasonable to me)
enough babbling, enjoy!
enough babbling, enjoy!