ROI Calculator and Business Case Builder
Build a compelling, data-driven ROI calculator and business case document that quantifies the value of your product or service for enterprise buyers and procurement committees.
Prompt Template
Help me build an ROI calculator and business case document for selling my product/service. **Product/service:** [what you sell] **Target buyer title:** [e.g., VP Engineering, CFO, Head of Marketing] **Price point:** [annual contract value or subscription cost] **Primary value proposition:** [the main problem you solve] **Key metrics your product impacts:** [e.g., time saved, revenue increase, error reduction, cost elimination] **Typical customer profile:** [company size, industry, current tools/process they replace] **Average implementation time:** [weeks/months to full value] **Competitor/status quo comparison:** [what they do today without your product] Please create: 1. **ROI model framework** — an input/output calculator structure with editable assumptions and formulas 2. **Cost-of-inaction analysis** — quantify what the prospect loses every month they delay 3. **Value driver breakdown** — 3-5 measurable value categories with conservative, moderate, and aggressive estimates 4. **Payback period calculation** — time to break even on the investment 5. **Business case narrative** (1 page) — executive summary format suitable for forwarding to a CFO 6. **Objection pre-emption** — anticipated financial objections and data-backed responses 7. **Customer proof points** — templates for citing real customer outcomes (with placeholders)
Example Output
💰 ROI Calculator & Business Case
Product: DevFlow — CI/CD Pipeline Optimization Platform
Target Buyer: VP of Engineering
1. ROI Model
Inputs (Customer-Specific)
| Variable | Default | Customer Value |
|----------|---------|----------------|
| Number of developers | 50 | [___] |
| Average developer salary (fully loaded) | ,000/yr | [___] |
| Current deploys per week | 3 | [___] |
| Average deploy time (minutes) | 45 | [___] |
| Failed deploy rate | 12% | [___] |
| Hours spent on deploy-related incidents/week | 15 | [___] |
| DevFlow annual license | ,000 | ,000 |
Outputs
| Value Driver | Annual Savings |
|-------------|----------------|
| Deploy time reduction (45→12 min) | ,500 |
| Failed deploy reduction (12%→3%) | ,400 |
| Incident response time savings | ,400 |
| Developer productivity gain (context switching) | ,500 |
| **Total annual value** | **,800** |
| **Net ROI** | **407%** |
| **Payback period** | **73 days** |
2. Cost of Inaction
> Every month you delay costs your team approximately **,900** in lost productivity and failed deployments. Over the 3-month evaluation period, that's **,700** — more than the annual license cost.
3. Executive Business Case (1-Page)
**To:** [CFO Name]
**From:** [Champion Name], VP Engineering
**Re:** DevFlow Investment — K/yr for K+ in annual savings
**The Problem:** Our engineering team of 50 spends 22% of their time on deployment-related tasks and incident response. At a fully-loaded cost of K/developer, that's .98M/year in engineering time diverted from product development.
**The Solution:** DevFlow reduces deploy time by 73%, cuts failed deployments by 75%, and automates incident triage. Based on our pilot results and peer company data, we project K in annual savings.
**The Ask:** Annual license of ,000 with 73-day payback.
**Risk:** 30-day pilot with success criteria defined upfront. If metrics aren't met, we cancel with no obligation.
Tips for Best Results
- 💡Always let the prospect input their own numbers — self-calculated ROI is 3x more persuasive than vendor-provided figures
- 💡Use conservative estimates by default and let the champion upgrade to moderate — this builds trust with finance teams
- 💡Frame the cost-of-inaction in monthly terms ("every month you delay costs ") to create urgency without being pushy
- 💡Include a 1-page executive summary — the CFO won't read a 10-page business case, but they'll read a 1-pager their VP forwarded
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