Once upon a time the percent fee was the standard. The AIA said so. Then the Department of Justice sued the AIA to eliminate price-fixing, and all the standard fee scheduled were destroyed (or at least filed discretely away).
Today it is hard to imagine that it was a problem, and it probably wasn't. But then, you know government always does what is best for us.
In any event the tables have turned, and now it is government that is dictating fees. In case you have never seen one here is a table of fees based on a percentage of construction cost.
Click the image to download it, but first promise that you won't use it to fix prices.
Other articles on fees:
A downloadable Sample: