Arithmetic average price = the sum of the products of all transaction prices multiplied by the transaction quantity/total transaction quantity of the transaction price.

Example: IF 1005, 34 18 transactions 100 lots in the last two hours.

200 lots were sold at 34 16.

34 14 300 lots.

Then, IF 1005 settlement price = (3418 *100+3416 * 200+3414 * 300)/(100)

=34 15.33

Then 34 15.33 is the settlement price of the day.

1. Simple arithmetic mean

Simple arithmetic mean is mainly used for ungrouped raw data. Let a set of data be X 1, X2, ..., Xn, and the calculation formula of simple arithmetic mean is:

M=(X 1+X2+...+Xn)/n

For example, a sales team has five salesmen, and the sales on New Year's Day are 520 yuan, 600 yuan, 480 yuan, 750 yuan and 500 yuan. Find the average sales on that day.

Average sales =(520+600+480+750+500)/5=570 (RMB)

The calculation results show that the average turnover of five salesmen on New Year's Day is 570 yuan.

[Edit this paragraph] 2. Weighted arithmetic mean

Weighted arithmetic average is mainly used to process grouped data. Let the original data be divided into k groups, the values in each group are X 1, X2, ..., Xk, and the frequencies of each group are f 1, f2, ..., fk, respectively. The calculation formula of weighted arithmetic mean is:

M=(X 1f 1+X2f2+...+Xkfk)/(f 1+f2+...+fk)