Written-down value is the value of an asset after accounting for depreciation or amortization. It is also called book value or net book value.

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.

Discover 7 powerful Excel functions that will revolutionize your workflow, automate tasks, and save you hours of time. From ...

This inflation calculator uses the change in the Consumer Price Index (CPI) from 1913 to 2025 to estimate the U.S. dollar's buying power and future value.

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.

XLOOKUP is Excel’s modern fix for everything VLOOKUP got wrong. It’s simpler, more flexible, and available in Excel 365 and ...

Number columns allow you to take large numbers and subtract one from another. Find out more in this Bitesize Primary KS2 Maths guide.