As can be seen from Table 6, factors significantly affecting the profitability of companies are net profit growth rate, revenue growth rate, producer price index, interest rate, etc. Although some factors, such as general index of total wages, total retail sales of social consumer goods, current asset turnover, and so on, are not listed as the key evaluation factors, some of their classification nodes have a significant impact on profitability. This shows that the NG based method can not only depict which factors have an effect on the profitability of companies, but also can describe the specific impact of each value of factors, for example, “GDP, grade 5” in Table 6 indicates if the GDP factor value is 5, it has an important impact on profitability.