Averages are typically computed as the sum of values divided by the number of data points. However, averages are also calculable from percentages. As an example, grades in a course might be weighted ...

Claire Boyte-White is the lead writer for NapkinFinance.com, co-author of I Am Net Worthy, and an Investopedia contributor. Claire's expertise lies in corporate finance & accounting, mutual funds, ...

Have you ever found yourself wrestling with Excel formulas, trying to calculate moving averages or rolling totals, only to end up frustrated by the constant need for manual adjustments? You’re not ...