Start with three numbers: average scans per day, average fee per scan, and the total machine investment including probes.
Monthly gross ≈ scans per day × fee × working days (about 26). Divide machine cost by monthly gross to get an approximate payback period in months.
Eight scans a day at ₹900 gives roughly ₹1.87 lakh per month — an ₹18 lakh machine would pay back in about 10 months, before running costs.
The bigger lever is often procurement: choosing the right probes and software for your caseload, and not paying for features you won't use.