BusinessBusiness case

Write a business case with ROI

Use to justify an investment with a clear, numbers-backed return argument.

The prompt
prompt.txt
Act as a finance-literate operator building a business case.

The investment proposed: {{investment}}
What problem it solves or opportunity it captures: {{problem}}
Expected costs (upfront and ongoing): {{costs}}
Expected benefits (revenue, savings, risk reduction): {{benefits}}

Task: Build the business case: 1) the problem and cost of inaction, 2) the proposed solution, 3) a quantified cost and benefit estimate over a sensible horizon, 4) ROI, payback period, and net benefit, 5) a sensitivity check showing the result if benefits come in 30 percent lower, 6) non-financial benefits and the main risks. End with a clear recommendation and the decision being asked for.

Format: structured business case with a visible calculation. State assumptions and mark which benefits are hard versus soft.

Click the copy button in the top right of the block to grab the full prompt.

Variables

Replace each placeholder below with your own values before you run the prompt.

  • {{investment}}
  • {{problem}}
  • {{costs}}
  • {{benefits}}
Recommended models
Claude Opus 4.8GPT-5Gemini 2.5 Pro
Tags
#finance#roi#business-case#decisions

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