I went a little further and made a Google Sheet (their free version of an Excel spreadsheet) where I do my "loop" from start to finish and then create columns to calculate miles between locations as well as average driving time. I did this using some Google Cloud APIs. Yes, it's a bit over the top for those who don't have programming experience, but if anyone wants other tips on how to do this, let me know. Also, using the APIs is free up to a point, and then you get a monthly charge every time you call it, but it's so worth it. Once a shop loop is complete, I turn off the formulas so they don't keep loading up over and over, and I get charged out the wazoo.
From the sheet, I calculate mileage, hours, and then with the revenue generated, I see what I earned per hour and my potential tax write off with the miles.