When Dermot O’Gorman began his career, his chosen specialism of environmentalism could scarcely have been less fashionable in corporate circles. It was the late 1980s, and we were under the influence ...

Discover how Microsoft's Excel Copilot simplifies data analysis with natural language queries and boosts productivity. Excel’s AI Copilot ...

Learn how to calculate all the particulars of a loan using Excel and how to set up a schedule of repayment for a mortgage or any other loan.

Interest is the monetary charge for the privilege of borrowing money, typically expressed as an annual percentage rate.

Use BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK. Find out how to listen to other BBC stations ...