主题：两个数相除要保留两位小数该怎么写啊

已调成2了，还是不行。

    DEBUGFILE2('D:\jztLog\log.txt','shigh = %.2f',shigh,1);
    DEBUGFILE2('D:\jztLog\log.txt','close = %.2f',CLOSE,1);
    DEBUGFILE2('D:\jztLog\log.txt','down = %.2f', ROUNDS((shigh - CLOSE)/shigh,2),1);
     DEBUGFILE2('D:\jztLog\log.txt','down = %.2f',(shigh - CLOSE)/shigh,1);

对应日志：

2016-09-20 13:36:29.458    shigh = 2264.00
2016-09-20 13:36:29.458    close = 2258.00
2016-09-20 13:36:29.458    down = 0.00
2016-09-20 13:36:29.458    down = 0.00

无法理解。。。