I have both charity and commission locations and for the commission locations I tell them 20%, I count the money right in front of them and if its a good pull I will give them more than what they are expecting. I have experienced firsthand when the business owner sees all the money coming out of the machine they get the idea that they don't need YOU if you don't give them a fair share. They then proceed to kick you out and get their own machine. So treat them fairly and you should have a mutually beneficial relationship.

Start with 1-3 machines and start off slowly. Buy used equipment - every experienced bulk vendor will tell you these things. You can find cheap, quality machines on Craigslist, and who knows, you might get lucky and find an inexpensive route that a bulk vendor wants to get rid of. I started with Vendstars, which many people think are junk but they are cheap and I have made my money back many times over.

Just start small, given your circumstances! Locate your machines yourself, as you will save money and develop a relationship with the business owner.

Charity vending is great, I am affiliated with the National Childrens Cancer Society, so you help a good cause plus you don't have to share the money with the business as with commission vending! Hope this helps!