Excel Tutorial: How To Do Percentage Sum In Excel


When it comes to working with data in Excel, knowing how to calculate percentages is a crucial skill. Whether you're analyzing sales figures, budgeting, or tracking project progress, understanding how to do percentage sum in Excel can help you make better-informed decisions. In this tutorial, we'll walk you through the steps to effectively calculate percentages in Excel, giving you the tools you need to confidently work with your data.

Key Takeaways

  • Knowing how to calculate percentages in Excel is crucial for analyzing data and making informed decisions.
  • Understanding basic Excel functions is essential for successfully calculating percentage sums.
  • Inputting the correct data and using the appropriate formula is vital for accurate percentage sum calculation.
  • Formatting the results and checking for errors are important to ensure the accuracy and presentation of the calculated percentages.
  • Practicing and mastering the skills needed for percentage sum in Excel is encouraged for better data analysis and decision-making.

Understanding the basic Excel functions

When it comes to calculating percentages in Excel, it is essential to have a good understanding of the basic functions that will be involved in the process.

A. Discuss the basic functions needed for percentage sum calculation
  • SUM function

    The SUM function is used to add up a range of cells. This function will be crucial in calculating the total sum on which the percentage will be based.

  • Percentage formula

    The percentage formula in Excel is a simple mathematical equation that allows you to calculate a percentage based on the given values. This formula will be used to calculate the percentage sum.

B. Explain the significance of knowing these basic functions before attempting percentage sum in Excel

Having a good grasp of these basic functions is important because they form the foundation for performing more complex calculations in Excel, such as percentage sums. Understanding how to use the SUM function and the percentage formula will enable you to accurately calculate percentage sums and perform other related tasks with ease.

Inputting the data

When it comes to performing a percentage sum in Excel, it’s essential to have the right data input in the spreadsheet. This includes the values that you want to work with for the percentage sum calculation.

A. Discuss the data needed for percentage sum calculation

Before getting started with the actual calculation, it’s important to understand what kind of data is required. In order to calculate a percentage sum, you will need the total value and the individual values for which you want to find the percentage sum.

B. Provide a step-by-step guide on inputting the data into Excel

Here is a step-by-step guide to inputting the data into Excel:

  • Open Excel: Start by opening Excel on your computer.
  • Create a new spreadsheet: Click on “File” and then “New” to create a new spreadsheet.
  • Input the total value: In a cell, input the total value for which you want to calculate the percentage sum.
  • Input the individual values: In separate cells, input the individual values that you want to use for the percentage sum calculation.
  • Label the cells: It’s a good practice to label the cells with the values for easier reference during the calculation.

Excel Tutorial: How to do percentage sum in excel

Percentage sum calculation in excel can be a useful tool for various financial and analytical purposes. In this tutorial, we will explore the formula needed for percentage sum calculation and provide examples of how to use the formula in different scenarios.

Using the appropriate formula

When it comes to calculating percentage sum in excel, the formula you need to use is:

=SUM(number1:numberN)/total * 100

This formula calculates the percentage sum of a range of numbers in relation to a total value and converts it into a percentage.

Explain the formula needed for percentage sum calculation

Let's break down the components of the formula:

  • SUM: This function adds up all the numbers in a given range.
  • number1:numberN: This represents the range of numbers for which you want to calculate the percentage sum.
  • total: This is the total value to which the percentage sum will be calculated.
  • * 100: This part of the formula converts the result into a percentage.

Provide examples of how to use the formula in different scenarios

Let's consider a practical example to understand how to use the formula for percentage sum calculation. Suppose you have a sales dataset with individual sales figures and you want to calculate the percentage contribution of each salesperson to the total sales.

You can use the formula as follows:

=SUM(B2:B6)/B10 * 100

Where B2:B6 represents the range of individual sales figures and B10 is the total sales value.

Another scenario where the percentage sum calculation is useful is when you want to determine the percentage growth of a series of values over time. For example, if you have monthly revenue figures and you want to calculate the percentage increase from one month to the next, the formula can be used in a similar manner.

By understanding and applying the formula for percentage sum calculation in excel, you can efficiently analyze and interpret data for various business and analytical purposes.

Formatting the results

When working with percentages in Excel, it’s important to not only calculate the values accurately but also to present them in a clear and visually appealing manner. This not only makes it easier to understand the data but also adds a professional touch to your work.

A. Discuss the importance of formatting the results

Formatting the results in Excel is important because it helps in presenting the data in a more understandable and visually appealing manner. It makes the information more accessible and easier to interpret for the end user. Additionally, it adds a professional touch to your work and can make a good impression on your audience.

B. Give tips on how to format the results to make them more presentable

Here are some tips on how to format the results of your percentage sum in Excel to make them more presentable:

  • Apply percentage format: Use the Percentage format to display your results as percentages. This will make it clear to the audience that they are looking at percentage values.
  • Use colors: Apply different colors to highlight positive and negative percentages, or to differentiate between different categories. This can make the data more visually appealing and easier to interpret.
  • Add data labels: If you are presenting your results in a chart, consider adding data labels to show the exact percentage values. This can help in providing more context to the data.
  • Use conditional formatting: Apply conditional formatting rules to highlight specific percentage values that meet certain criteria. This can help in drawing attention to important data points.

Checking for errors

When working with percentage sums in Excel, it's crucial to double-check your calculations to ensure accuracy. Even a small mistake can lead to significant errors in your final result. Here's how to make sure your percentage sum in Excel is error-free:

A. Emphasize the need to double-check the calculations

Before finalizing your percentage sum in Excel, take the time to review and double-check your calculations. This step is essential to catch any potential errors and ensure the accuracy of your results.

B. Provide a checklist for common errors to look out for
  • Cell references: Ensure that the cell references in your formula are accurate and point to the correct cells. A simple mistake in the cell reference can lead to incorrect results.
  • Data entry: Double-check the data you've entered into the formula to ensure that it is correct. Typos or incorrect values can result in errors in your percentage sum.
  • Formula syntax: Verify that the syntax of your percentage sum formula is correct. Check for any missing parentheses, commas, or other operators that could impact the calculation.
  • Formatting: Pay attention to the formatting of your cells, especially when working with percentages. Ensure that the cells are formatted correctly to display percentages and that the formula references the formatted cells accurately.


In conclusion, we have discussed the step-by-step process of how to do percentage sum in Excel. We learned how to use the SUM function along with the percentage values to calculate the total percentage sum in a given range. Remember to double-check your formulas and ensure that the correct cells are selected for accurate results.

It is important to practice and master the skills needed for percentage sum in Excel. The more you practice, the more comfortable you will become with using this feature, and soon you will be able to apply it to various real-life scenarios in your work or personal projects. So, grab your Excel spreadsheet and start practicing!

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