Learn how to calculate and display variance inside Excel pivot tables. Perfect for financial analysis, reporting, and data ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Amy is an ACA and the CEO and founder of OnPoint ...

Chronic diseases may injure the pancreas and result in a reduction in pancreas volume (PV), which may adversely impact its critical role in endocrine and exocrine function. Less is known about whether ...

Researchers in United Arab Emirates have developed a novel model that relies on either the open-circuit voltage or the maximum power point voltage to estimate PV module operating temperature without ...

Scientists in China have investigated how frame perforations can help reduce the operational temperatures of solar modules through air cooling. Their findings show that the number of perforations must ...

Tools like Excel and Google Sheets are ubiquitous these days, and learning how to use them more effectively will quickly ...

Excel's VALUE function has only one argument: where a is the value stored as text that you want to convert into a number.

Solar PV in Australia’s NEM made a strong showing across October 2025, reaching 4,715GWh – a 9.88% increae year-on-year.