There are many moving averages. You should be talking about the ordinary moving average, which is simply sum divided by number. The calculation is based on the daily closing price of the first ten days (including the calculation day).

For example, on July 10, the ordinary arithmetic mean10 ma = (d1+D2+...+d10)/10.

Where d 1-d 10 is the daily closing price during the calculation period (from 1 to 10).

On the day of 1 1, remove D 1 from the formula and add D 1 1 to get the MA of 1 1, and connect the MA calculated every day into a line, which is what you call the average.

There will be multiple moving averages in different calculation periods, such as 5-day, 10, 20-day and 100.

There are several other weighted moving averages, which have different functions, but look at MA the most.