Laundromats are changing. They were once the refuge of those who didn’t have access to their own washing machines or dryers. They served a low-income clientele who didn’t have other options. They’ve always been a great way to make passive income, but due to changing dynamics, their passive income generating ability is getting even better. If you are looking for how to start a coin operated laundry business and generate passive income, here are 5 things to know when starting a coin op laundromat business. 1. Do the Math The first step in determining how to start a…