My powder had less scoops than it should have. Why?

The measuring system used in our pharmaceutical facility is based on the weight, not the number of scoops.

Measuring by the scoop would contain many factors including the fill level, density etc. that would be inconsistent among measurements. 

Our products are manufactured in a cGMP pharmaceutical facility in the US.

As such, they are required to adhere to strict guidelines to ensure weighing accuracy.

GMP requires scales to be consistently accurate and to be periodically calibrated and tested. Home scales would not be as accurate.