I think it's probably proprietary information.
Also, it's the "whole package" not just the wax % that matters. The total % of ingredients in a can of wax = 100%. To raise the % of wax means that the % of something(s) else will need to go down. This may mean a product that is less durable, harder to apply/remove, less reflective / deep /glossy /whatever. In fact, you could have 2 products with the same % of carnauba in them, but if one is better engineered than the other, you will have 2 very different results.
Hope this helps.