Apple's Numbers spreadsheet for Mac, iPhone, and iPad, is not as powerful as Microsoft Excel, but most users will be hard-pressed to find its limitations — and will immediately see how much easier ...

Use Microsoft Excel to calculate EBITDA (earnings before interest, tax, depreciation, and amortization) profit margin.

Database management, performance tuning, database administration, and database change and configuration news, analysis, trends, and research for the DBA.

How to calculate return on investment (ROI), the money an investment made relative to its cost, in Microsoft Excel.

Vibration plates are all the rage right now because they claim to help you lose weight or build muscle --all while standing on the vibrating surface. But does standing on a shaking platform really ...