AGGREGATE was built to handle messy data from the start.

Learn to calculate fixed asset depreciation in Excel using methods like straight-line, sum of the years' digits, and more for accurate financial analysis.

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...

Inventory is one of the most important parts of running a business—and one of the most challenging to manage. Overstocking ...