The other aspect to this question is this: if a food contains "10g of Carbs per 100g", this means that if you have 200g of the substance, then you have 20g of carbs...if you have 50g of the substance, you have 5g of carbs. In other words, it is a ratio, and in order for it to mean anything to you, it is necessary to know what weight of that particular food you are dealing with.

Hope this makes things clearer. If not, please shout out, and I will explain further.

Andy