According to Notice No.9 of the Rules for Information Disclosure and Compilation of Public Securities Companies issued by China Securities Regulatory Commission, the formula for calculating the weighted average return on equity (ROE) is: ROE = P/E0+NP ÷ 2+EI× MI ÷ M0-EJ× MJ ÷ M0. In which: P is the profit during the reporting period; NP is the net profit during the reporting period; E0 is the initial net assets; Ei refers to new net assets such as issuing new shares or debt-to-equity swaps during the reporting period; Ej reduced its net assets for repurchase or cash dividends during the reporting period; M0 is the number of months in the reporting period; Mi refers to the number of months from the following year 1 month to the end of the reporting period; Mj is the number of months from the following year 1 month to the end of the reporting period.

Return on net assets is the percentage rate of a company's after-tax profit divided by its net assets, which is used to measure the efficiency of a company's use of its own capital. Take the above companies as an example. After-tax profit is 200 million yuan, net assets are 654.38+05 billion yuan, and return on net assets is 654.38+03.33% (i.e. * 100%).

If the annual target value of ROE is 2.8%, it is reasonable for ROE to be 1.6% by the end of April. The return on equity will increase over time (assuming that the monthly net profit is positive).