Percentages aren't always easy to calculate, but one of the best tools in Excel's toolbox is calculating percentages for you. Here's how to do it.

How do you calculate percentage increase or decrease in Excel Let us understand the basics of the percentage change. The percentage change is (new value-old value)/old value.

These weights do not have any physical units, but they can be expressed as decimals or integers, apart from percentages. Read Next: How to calculate Grade Point Average or GPA in Excel.