The four R&I machines operational in 2015 realized an annual revenue of $60,000/machine. Charging $5/serving (at a cost of $1/serving), accounting for royalties (12%), location commission (12%), sales tax (7%), insurance, maintenance, etc, VEND estimates each machine would generate an annual net cash flow of approximately $24,000, for an annual ROI of nearly70% on the initial $35,000 cost of the machine.