Microsoft Excel can be a powerful tool for large and small businesses alike. It is used to perform calculations, store and compile data, and create graphs based on that data. A variety of formulas are ...

A date-and-cost line chart tracks a commodity's changing price over time. Economists use such diagrams to display broad market trends and predict future prices. Businesses that restock continually use ...

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, ...