Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.

Learn how to change the default file format for saves in Word, Excel, and PowerPoint, so that you do not need to change it every time.

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

The simplest form of regression in Python is, well, simple linear regression. With simple linear regression, you're trying to ...

If Microsoft Excel opens a Blank screen when you open an existing file, then you can stop Excel from opening a Blank workbook or sheet.

Income tax e-filing portal shares several tax calculators to help taxpayers ascertain the exact amount of tax liability, ...