With Excel, you can create simple calculators that speed up calculations you perform frequently. Among the many calculators that you can create with Excel is one that handles the pricing of options, ...

A seasonal index is a way of measuring the seasonal variation -- that is, to measure the change that is due to seasonal changes in demand -- of a variable, typically sales. For example, a beachfront ...

Commercial off-the-shelf software such as Microsoft Excel lets you automate engineering functions (references 1 through 3). This Design Idea explains how you can use Excel to calculate the values of ...

All details in this article are correct as of October 29, 2025. Accessibility to some of the latest Excel features depends on ...

How do I… Calculate a conditional running total in Excel? Your email has been sent Running totals are used to update totals within a series in Microsoft Excel. For ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Amanda Jackson has expertise in personal finance, investing, and social ...