Sentence:  In all other States it is the difference obtained by subtracting from 100 the result obtained in item 4 above ; except that no State shall have an allotment <WSD>percentage</WSD> less than 33 - 1 3 % nor more than 75 % . 
Meaning of the word marked with <WSD> tags:  a proportion in relation to a whole (which is usually the amount per hundred)