1, pie chart function:

Use the size of the fan to reflect the percentage of each part in the total.

If you want to know more clearly the relationship between the number of parts and the total number, you can use a fan-shaped statistical chart. Fan-shaped statistical chart can make some chaotic data clear and clear, which is beneficial to calculate all kinds of data.

2, fan chart characteristics:

(1) The percentage of this part in the total is represented by the area of the fan;

② It is easy to display the size of each group of data relative to the total.

3, fan-shaped statistical chart production steps:

(1) According to the statistical data, sort out the data and calculate the percentage of the part in the whole;

(2) According to the percentage of each part in the whole, calculate the degree of the fan-shaped central angle of each part;

③ Make a circle with proper radius and divide the circle into several sectors according to the central angle;

(4) The names of each part of the corresponding mark and the percentage of the total.