Net unit value is a financial indicator used to measure open-end funds, exchange traded funds (ETFs) and other investment portfolios. The formula is:

net unit value = (total assets of the fund-total liabilities of the fund)/total share of the fund

In the investment process, net unit value is usually used to measure the performance and yield of the portfolio. So, how to use the unit net value to calculate the return on investment?

1. Calculate the change of unit net value in the period

First, you need to calculate the change of unit net value of the portfolio in a specific period. This can be achieved by calculating the difference between the net unit value at the end of the period and the net unit value at the beginning. Suppose an investor bought 1, copies of a certain fund on January 1, 222, and the unit net value at that time was 1 yuan, so the total investment amount was 1, yuan. If the unit net value of the fund is 12 yuan on June 3, 222, the investor's fund share value is 12, yuan.

2. Calculate dividend and income distribution

Secondly, if the investment portfolio pays dividends or income distribution during the calculation period, these amounts also need to be counted. For example, if a fund announces a dividend of .5 yuan/share during the calculation period, the investor will receive dividend income from 5 yuan.

3. Calculate the total income

Finally, you can calculate the total income of the portfolio by adding the change in unit net value to any dividend or income distribution. Using the above example, the investor's total portfolio income is:

total income = (net unit value at the end of the period-net unit value at the beginning) * number of fund shares+dividend income

=(12-1)*1,+5=2,5 yuan.

Therefore, the investor's portfolio in the calculation period earned a total income of 2,5 yuan.

It should be noted that this calculation method only considers the change of unit net value and direct cash flow such as dividend and income distribution. For the price fluctuation and unrealized gains of the securities held in the portfolio during the period, the calculation of the gains may be more complicated.