# How to Graph a Pie Chart When the Categories Overlap

••• pie graph image by Tomislav from Fotolia.com
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Graphs and charts show statistical information in a visual format. Graphs make it easy to compare data and process it quickly. You can make a bar graph to compare two or more amounts in relation to each other or a pie chart to compare parts to a whole. If categories overlap in a pie chart, you need to create a new category including both topics.

Create a list of the items or categories you need to include on the pie chart. For an example, use expenses in a household of \$575 for rent, \$70 for electric, \$45 for heat and \$25 for water.

Add all expenses together for a total of \$715 in expenses for the month. Convert each number to a percent of the whole by dividing it by \$715. Rent is 80.4 percent, electric is 9.8 percent, heat is 6.2 percent and water makes up 3.6 percent of your monthly expenses. Each section has a portion on the graph.

Combine the two expenses you want to overlap into a single category, such as electric and heat. The new total is \$115 and makes up 16 percent of the monthly expenses. The new graph eliminates two separate categories for heat and electric and links them together in a new category.

#### Tips

• Not all graphs are ideal for all situations. You may be better suited to make a bar or line graph with the data. Experiment to see which type displays the data most effectively.

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