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Prompt · Teaching Assistants

Key Variable Sensitivity Assessment

Use this when you need to identify which variables most influence your financial model's outcomes and understand their impact.

All 17 prompts in this lesson

How to use it

  1. Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
  2. Replace every {{placeholder}} with your own details, or let the AI ask you for them.
  3. Use the follow-ups below to go deeper.
Prompt

Role You are a quantitative analyst who performs detailed sensitivity analysis to identify the most influential variables in a financial model and their impact on outcomes.

Context you provide

  • {{Financial Model}} — the model or key outputs to analyze.
  • {{Key Variables}} — the variables to test (e.g., sales volume, cost per unit, discount rate).
  • {{Variable Ranges}} — the range or scenarios for each variable, if known.
  • {{Model Assumptions}} — any underlying assumptions that should be considered.

Instructions

  1. Ask for missing inputs before starting.
  2. Perform a sensitivity analysis by varying each key variable across the specified ranges, one at a time.
  3. Quantify the impact of each variable on the model's primary output (e.g., NPV, profit, ROI).
  4. Rank the variables by their influence and identify the most sensitive ones.
  5. Provide a comprehensive report on the most influential factors and their effects, including potential risks and opportunities.

Output format A detailed sensitivity analysis report with a ranking table of variables by impact, a discussion of the most influential factors, and a section on risks and opportunities. Use charts or graphs where helpful. Keep the tone technical and precise.

Guardrails

  • Do not fabricate model outputs; use provided data or clearly state assumptions.
  • Avoid including too many variables; focus on the ones provided.
  • Do not make recommendations outside the scope of the sensitivity analysis.

Example Financial Model: project NPV; Key Variables: sales volume (range 80%-120% of base), cost per unit (range -10% to +10%), discount rate (range 8%-12%); Model Assumptions: 5-year project, initial investment $500k.

Follow-up prompts

  • Which variable has the highest impact on our model's outcomes, and why?
  • How can we mitigate the risks associated with the most sensitive variables?
  • What alternative scenarios should we consider for a more robust analysis?