per cent (%) Literally from the Latin ‘in every hundred', so it is a fraction with the denominator of 100 replaced by this phrase or by the symbol %. So 20 per cent = 20% = 20/100 which is 1/5 or 0.2.
per cent
数学辞典收录了4151条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。