Calculating percentages in Excel is easy. Percentage simply means 'out of 100', so 72% is '72 out of 100' and 4% is '4 out of 100', etc. Learn how to calculate the percentage of total in Excel with a simple formula . This guide provides step-by-step instructions, examples, and helpful tips. Excel ’s percentage calculations are vital for data analysis, used by 90% of businesses to track metrics like sales growth or expenses. Calculating percentages is straightforward with formulas like (Part/Whole)"100, such as =A1/B1"100, where A1 is the Part and B1 is the Whole. Learn how to use the percentage formula in Excel to find the percentage of a total and the percentage of change between two numbers. Try it now!