[经] ratio of margin on sales to net sales

xiāo shòu máo lì duì xiāo shòu jìng é de bǐ lǜ ㄒㄧㄠ ㄕㄡˋ ㄇㄠˊ ㄌㄧˋ ㄉㄨㄟˋ ㄒㄧㄠ ㄕㄡˋ ㄐㄧㄥˋ ㄜˊ ㄉㄜ˙ ㄅㄧˇ lv4