ROI Calculator (Return on Investment) — Notebook Template
Compute ROI from gain and cost, and compare multiple scenarios side-by-side in a reproducible notebook.
What this template does
This is a ready-to-run GetCalcMaster Notebook starter. Open it into Notebook, run once with defaults, then tweak inputs and keep your assumptions next to the math.
How to use it (recommended)
- Open in Notebook.
- Enter cost and expected gain (or revenue).
- Compute ROI and compare scenarios by duplicating the cells.
- Add a text cell describing assumptions (time horizon, risk).
- Snapshot the final comparison.
Tip: When a result matters, verify it twice: a unit check + a second method (graph/estimate).
Preview (first cells)
This preview is for readability. The full template loads into Notebook when you click Open.
TEXT
# ROI Calculator (Return on Investment) Formula: **ROI = (Gain − Cost) / Cost** ROI is dimensionless. Interpret alongside time horizon and risk.
MATH
cost = 900
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gain = 1200
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ROI = (gain - cost) / cost
MATH
ROI
MATH
# Example: compare a second scenario cost2 = 900 gain2 = 1500 ROI2 = (gain2 - cost2) / cost2