Andrew Petersen is a third-generation oil refinery worker from a small, industrial Scottish town. When he was growing up, working at Grangemouth refinery meant you "had a job for life".

Over my forty years or so in and around dealing rooms and financial markets, I have heard many theories as to how to approach that problem and have settled on a process that has worked for me.

Make data more insightful with free, online, collaborative spreadsheets. Microsoft Copilot in Excel unlocks the latest AI capabilities to help you achieve your goals—from creating a simple spreadsheet ...