2. Incremental analysis. That is, every item in the income statement is compared in two periods, which are divided into increment and growth rate.

3. Structural analysis. That is, calculate the proportion of each project in the current income and see the contribution of each project to the income. Compare the structural analysis data of two periods.

4. Further analyze the change rate of more than 5% in incremental analysis and structural analysis. If the change rate of management expenses exceeds 5%, compare the changes of management expenses in two periods.

From the above analysis, we can see the main reasons leading to the change of profit.

The above is the specific method to analyze the changes in the income statement. Judging from the outline of the thesis, I think:

1, analyze the necessity of changes in the income statement:

(1) Definition of income statement: It reflects the net income obtained by an enterprise in a certain period of time, and itemizes the sources of income and the corresponding costs of obtaining income (a more accurate description can be written from textbooks).

(2) Analysis of the necessity of changes in the income statement: Through the analysis of changes, we can find out the growth point of profits or the main reasons for losses, so as to take corresponding measures according to specific conditions.

2, how to analyze (that is, the above content)