Note that these work out at 66.7% (2/3) for adults and 70.1% children.
The numbers also allow for up to 120g, 90g & 85g (26-27%) to be "sugars".
If you allow for "saccharification", hydrolysis of polysaccharides (including disaccharides), then you end up with: 326-333g sugar for men, 250-256g...