1, the cash maturity debt ratio is equal to the comparison between the net cash flow from operating activities and the debts due in the previous period (the standard value is 1, 5);

2. The cash flow debt ratio is equal to the comparison between the annual net cash flow generated by operating activities and the current liabilities at the end of the previous period (the standard value is 0.5);

3. The cash debt ratio is equal to the ratio of the annual net cash flow generated by operating activities to the total liabilities at the end of the previous period, with the standard value of 0.25;

4, sales cash ratio, sales cash ratio is equal to the net cash flow generated by operating activities compared with sales, the standard value is 0.2;

5 operating cash flow per share, operating cash flow per share, etc.