Yes, that's right, that's why I wrote to him above to search for these names in npcgrp.dat who have such suffixes. And I too wrote to him above that not every class with the suffix _bi_NUM this is exactly number of %.
For example: devastator_200_bi = ( DrawScale=3.00 ) and not 2.0 as we saw from the name, therefore one must be careful.
In any case, this is the easiest method for him.