For example, if a cell contains the formula =10/100, the result of that calculation is 0.1. Percentages are calculated by using the equation amount / total = percentage. To accurately display percentages, before you format the numbers as a percentage, make sure that they have been calculated as percentages, and that they are displayed in decimal format. For example, if a cell contains the number 10, Excel multiplies that number by 100, which means that you will see 1000.00% after you apply the Percentage format. Formatting cells that already contain numbers If you apply the Percentage format to existing numbers in a workbook, Excel multiplies those numbers by 100 to convert them to percentages.How Excel handles percentagesĪlthough formatting numbers as percentages is straightforward, the results you get after you apply the format may vary, depending on whether the numbers already exist in your workbook. Learn how to display numbers as percentages in Excel and view examples of several basic techniques for calculating percentages in your worksheet. All Reviews Merged, Full-Width, Comment-Sorted.Sections Merged, Highest Rated w/ Right Sidebar.Sections Separated, Highest Rated, Full-Width.All Reviews In Merged List w/ Custom Sidebar.Full-Width Review w/ Hidden Featured Image.