I don't really know because I keep my feeders pretty full all the time and let my birds eat whenever they want and they free range, but maybe someone on this forum might. I think I saw some posts depending on if they free range or not, but I'm not sure if it was BYC or other forums I check out. I am interested too and hope maybe some one will know and post.
I assume that you are asking about a chick eating feed, 0 to 8 weeks.
University of Missouri Extension's info on the requirements of leghorn-type chickens (see Table 3), shows feed consumption per week at 0, 2, 4, and 6 weeks. If you add them up and double these weekly figures, you'll get about 2.5 pounds of feed per chick.
In Table 1 you'll see that broiler chicks will have finished 3,560 grams of feed by the end of week 7. That's nearly 8 pounds of feed.
I followed the link you gave above and those tables are extremely helpful to me as well. I have been concerned that I might not be feeding my hens enough. This gives me a much better idea of how much I need to give them.