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# Pie Chart

## What is Pie Chart?

• A pie chart is a graphic description of data in the figure of a circular graph or pie where the elements of the pie show the relative sizes of data. Each of these divisions or slices denotes the proportionate piece of the entire.
• It is one of the most regularly applied graphs to design data.
• A pie chart using the properties of circles, angular, and spheres data to draw real-world reports.
• The other name of the pie chart is pie diagrams. ## Pie Chart Formula

Behalf of these factors, there are given below two mainly formulas applied in pie charts:

• To find out the percentage of the given data, we apply the method: • To change the data into degrees we apply the formula: ### How to Create a Pie Chart?

A teacher surveys her class based on the favorite color of trainees :

 Green Orange Red Pink Yellow 10 5 5 10 10

The data above can be represented by a pie chart as follows and by applying the circle graph formula, i.e. the pie chart method given below. It gives the size of the piece easy to follow.

Level 1: First, Insert the data into the table.

 Green Orange Red Pink Yellow 10 5 5 10 10

Level 2: Combine all the values in the table to get the result.
I.e. Total trainees are 40 in this case.

Level 3: Following, divide all values by the total and multiply by 100 to obtain a percent:

 Green Orange Red Pink Yellow (10/40) × 100 =25% (5/ 40) × 100 =12.5% (5/40) ×100 =12.5% (10/ 40) ×100 =25% (10/40)× 100 =25%

Level 4: Next to understand how many degrees for all “pie slices” we require, we will take a full round of 360° and accompany the estimates below: Green Orange Red Pink Yellow (10/ 40)× 360° =90° (5 / 40) × 360° =45° (5/40) × 360° =45° (10/ 40)× 360° =90° (10/ 40) × 360° =90°

Step 5: Picture a circle and apply the protractor to estimate the degree of each slice. 