What is the best way to calculate % of Revenue?
My current accounting software shows it as a percentage of Total Operating Income but I see some software and spreadsheets that calculate it as a percentage of Gross Potential Rent. I can see advantages to each method. Is there an 'officially' right way? Which do you prefer? 
[{"id": "cm73fi7", "text": "I'm a debt guy and I'm used to seeing it compared to operating income. ", "replies": [], "depth": 1}, {"id": "cm74yaq", "text": "Potential Rental Income \u2013 Vacancy and Credit Losses = Effective rental Income\n\nEffective Rental Income + Other Income (Collectibles) = Gross Operating Income\n\nGross Operating Income \u2013 Total Operating Expenses = Net Operating Income\n", "replies": [{"id": "cm77xbw", "text": "Thanks for the definitions but how does that answer my question?", "replies": [{"id": "cm7vp2y", "text": "it didn't", "replies": [], "depth": 3}, {"id": "cm7w9dq", "text": "Use the gross operating income", "replies": [{"id": "cm84wme", "text": "Yeah, that's what I thought and that's what I use.", "replies": [], "depth": 4}], "depth": 3}], "depth": 2}], "depth": 1}, {"id": "cm7o09e", "text": "There is no \"right\".  Only what is common.  Common language facilitates understanding, which facilitates better business.", "replies": [], "depth": 1}]