[经] comparative statement of product costs
chǎn pǐn chéng běn bǐ jiào biǎo ㄔㄢˇ ㄆㄧㄣˇ ㄔㄥˊ ㄅㄣˇ ㄅㄧˇ ㄐㄧㄠˋ ㄅㄧㄠˇ