The formula that was posted was it the formula for all the examples about the investment yields.
To determine if the formula posted is the formula for calculating investment yields, we need to examine the formula and consider how it relates to the concept of investment yields.
Investment yields generally refer to the return on an investment, expressed as a percentage. The most commonly used formula to calculate investment yield is the total return formula.
The total return formula is given as:
Total return = (Ending value - Beginning value + Dividends or Interests) / Beginning value
Now, if the formula you are referring to matches this structure and includes the necessary components (ending value, beginning value, and dividends or interests), then it is likely the formula for calculating investment yields.
However, without knowing the specifics of the formula you are referring to, it is difficult to determine conclusively whether it is the correct formula for investment yields. Please provide more details about the formula in question, or feel free to ask any other specific questions you may have.