该用哪个相对数·白矾·上期谈到百分数与百分点的应用，这一期我们来谈谈相对数的应用问题。百分数和百分点是相对数的一种计量形式，除了百分数外，还有千分数、倍数和系数。在一般情况下多用百分数来表示，当数值很小，为了减少小数的位数，便用千分数来表示。如果数值... Which relative number should be used? Alum · In the last issue we talked about the application of percentage and percentage points. In this issue we will talk about the application of relative numbers. Percentages and percentages are a form of measurement of relative numbers, with the exception of percentages, as well as fractions, multiples, and coefficients. In most cases, the percentage is used to indicate that when the value is small, the decimal point is used to reduce the number of decimal places. If the value ...