This line doesn’t line up with the data also in the article. The gross margin on each product is about 40%, you then lose 15-25% on stocking the machines, plus have to pay for gas, a car, insurance, repairs, initial outlay of machines etc.
Why do you have to be running around town stocking these machines yourself? Surely there are service companies who do this for you, just like US vending machines.
You’re getting maybe 5% net margin.