I’ve run the numbers on the new spectrometer. With a purchase price of $120,000 and annual operating costs of $20,000, the total yearly cost is $140,000. The lab has used it for 70 peer‑reviewed papers over the last three years, so that’s roughly 23 papers per year. Dividing the yearly cost by 23 gives about $6,087 spent per paper. That figure is on the high side compared to the $3,500–$4,500 typical for mid‑range instruments, so unless the paper output doubles, the cost‑benefit ratio is not ideal.

You’re right, the numbers are a signal. I’ll quantify the options: a teaching block could add, say, 20 extra runs per year—about 7 extra papers, cutting cost per paper to roughly $4,800. Shared usage with a partner could double that, bringing us closer to the sweet spot. A vendor lease that reduces operating costs by 30% would drop the yearly cost to $14,000, which, if usage stays at 23 papers, brings the per‑paper figure down to $6087/1.3≈$4,700. I’ll run the exact scenarios and present the projected return on investment for each; that should help the funding office make an informed decision.

I’ll keep the ROI table tidy and double‑check the assumptions. I’ll run a sensitivity analysis on the extra‑run scenario and the 30 % cost‑cut to see the realistic lower bound. If the numbers still hover above $4,700, I’ll flag a switch to a more efficient model or a revised funding plan. That’s the next logical step.

Thanks, I’ll tighten the assumptions and keep the spreadsheet clean.

Thanks, I’ll keep the numbers as tight as my lab notebooks.