DMR sets the compounding mixture at 1.5 to 1.75 per cent nitrogen on a dry weight basis at stacking. The mineral table in the same chapter prints 1.5 to 1.8 per cent, so treat the upper edge as soft and never round upward on purpose.
The second target is the carbon to nitrogen ratio, written C:N. It is adjusted to 25 to 30 parts carbon for each part nitrogen at stacking, and falls to about 16:1 in finished compost. Both targets describe one mix from two sides: how much protein food is present, and how much energy food sits around it.