From the expression form of index value, quantitative index is always expressed by absolute number. The quantitative index reflects the absolute number of the whole population, so its value increases or decreases with the size of the whole range.
Quality indicators: Quality indicators are relative to quantitative indicators. Statistical indicators used to reflect the overall internal quantitative relationship and the overall average level are called quality indicators.
For example, the gender composition of the population, the ratio of business loans to workers and peasants, the profit rate, the average wage and the average yield per mu. Judging from the expression form of index value, quality index is expressed by relative number or average value.
The quality index reflects the quantitative relationship within the population, so its value does not increase with the increase of population size.
Extended data:
Quality index is the total index reflecting the production effect or work quality. Its numerical value is a quantity representing the nature of matter. Such as labor productivity, output per unit area, stock price, unit product cost, etc.
It is usually expressed by relative number or average number to reflect the internal connection and contrast between phenomena, which plays an important role in evaluating the performance of various departments and units and exploring their internal potential.
The symbol of quantity is expressed in the form of absolute number, which is used to reflect the statistical index of the overall size and quantity, and its value generally increases or decreases with the size of the overall range.
Baidu Encyclopedia-Quality Index
Reference source: Baidu Encyclopedia-Quantity