[经] gross profit as a percentage of turnover
máo lì rùn zhàn xiāo shòu é bǎi fēn bǐ ㄇㄠˊ ㄌㄧˋ ㄖㄨㄣˋ ㄓㄢˋ ㄒㄧㄠ ㄕㄡˋ ㄜˊ ㄅㄞˇ ㄈㄣ ㄅㄧˇ