allotment percentage
(1) The “allotment percentage” for any State shall be 100 per centum less that percentage which bears the same ratio to 50 per centum as the per capita income of such State bears to the per capita income of the United States, except that (A) the allotment percentage shall in no case be more than 75 per centum or less than 33⅓ per centum, and (B) the allotment percentage for the Commonwealth of Puerto Rico, Guam, American Samoa, the Trust Territory of the Pacific Islands, and the Virgin Islands shall be 75 per centum.