a small cafe with only a few tables would only make enough to give a living, pay your way in life. But...
if you bought a small cafe like you say, the money isn't in the shop, it would be business out of the shop, so deliveries to either businesses or house calls. You would want to want to be in a prime location for collection to, maybe foot traffic or a few local businesses where the employers can come to purchase sandwiches and cakes.
My partner Gary's father owned a sandwich bar, he made a successful turnover with the location he was in, the profit is usually 150% on rolls and sandwiches. Of course cans of drink is a lot less, but even passing trade walks in to buy a can of coke when it's on a high street
If you want any more info if you're interested in purchasing a business like this, Gary says, welcomed to email us anytime