You've heard it called "JimRoy" and "GIMRoy" -- but however you say it, G.M.R.O.I. (Gross Margin Return on Investment) is the most important measurement of inventory productivity in retail. It is critical for everyone on the team to understand the concept of the return we are making on our inventory investment, and how it's calculated. GMROI is the great equalizer: you can sell fast and low margin, or slow on high margin -- but first you need to understand how to calculate it. Step into the classroom with Paul on this critical topic and learn through simple examples how to break down your total profits into GMROI, taking turns and costs into account.