The formula for calculating the annualized rate of return for seven days is: (return during the investment period ÷ principal) ÷7×365× 100%. "Rate of return refers to the rate of return on investment, generally expressed as an annual percentage. Seven-day annualized rate of return is the annual rate of return converted from the net income per 10,000 fund shares of the Monetary Fund in the past seven days. Seven-day annualized rate of return is the data obtained after annualization.