Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Erika Rasure is globally-recognized as a leading consumer ...

Percentage Formula: Percentages are a fundamental concept in maths, used frequently in daily life. It represents parts of a whole as fractions of 100. They're symbolised by the "%" symbol.

This post explains how to calculate Weighted Average in Excel with percentages. In a standard arithmetic average where the sum of values is divided by the number of values, each data value is treated ...