Rough Order of Magnitude (ROM) Estimates

I had a recent conversation in a freelancing group about how to productize services.  One of the questions was how to create a cost estimate given much of what we do is not well defined. To address this, I created a rough order of magnitude (ROM) estimation spreadsheet as a tool to quickly pull together an estimate.  I know there are many templates and tools out there that do this, but I wanted to create something simple that took into account the need for contingency as well as provided an easy framework to capture scope.   Let me know if you find this useful.  YMMV

You can view the Google Sheet here:
docs.google.com/spreadsheets/d/1N02uHDAiLKoKiE8CJH6fpkQ1QfVOxw5jap_mPEqekl0/edit?usp=sharing