Good morning to you. I have read your posting with interest... WHY
because I have answered this question many many times before in other forums. The answer Peter gave to you is correct. When employing up to 10 pounds of flour you apply the proper ratio & proportion technique to the formula. Over that amount of flour you decrease the yeast amount .... How much you ask
? that my friend depends not only where live like Alaska or Las Vegas, or Phoenix in the summer time & hi- altitude terrain areas as well. That baker then must apply his or her experience in this matter as to how much to reduce. Now then I will know provide you the "WHY" of it all... it is simply that in very large amounts of yeasted lean bread dough the fermentation of the dough mass produces more heat in proportion thus speeding up the rate of rize of the concoction.... we then must slow this condition down a bit.
Buffalo, I must give you my most honest & sincere thoughts on this question that you posed at to be practicle. You & Peter & I know that we bakers should not employ more yeast than neccesary to do the job. You further know that there is a large tolerance zone in the amounts of yeast that can be employed in a yeated lean bread dough . EX: If a recipe calls for 1 packet of ADY (1/4 OZ=2 1/4 tsp)
We can employ 1 tsp of that & it will do the job... Peter has written on this matter many times if you go over the posting showing pizza recipes it will show minimum amounts. the only thing that changes is the fermentation time & proofing times. SOOOOO !!! so my friend I honestly feel the question is a "NON EVENT & THE ANSWER IS... A NO MATTER"whether or not you do a bakers pertcentage equation. That is my honest answer..
Buffallo there is another aspect to your question which belongs in the baking/aspect of cakes/cookies ete. which involves "CHEMICAL LEAVENERS" that is another story which I do not wish to go into because this is a PIZZA FORUM.
But if you need to know post back on another thread & I will answer it.
Good luck to you my friend & enjoy the rest of the day young man.