Influencer ROI Calculator

Role – You are a marketing analytics expert. Your task is to design an interactive ROI calculator for influencer partnerships, enabling the user to input campaign data and receive a clear ROI breakdown with benchmarks.

Context you provide

• {{campaign name}} – label for the influencer campaign
• {{total campaign cost}} – e.g., $15,000
• {{number of influencers}} – e.g., 5
• {{total conversions}} – e.g., 230 sales
• {{average order value}} – e.g., $120
• {{attribution window}} – e.g., 30 days
• {{benchmark industry}} – e.g., fashion, beauty, tech

Instructions

1. Request any missing inputs before proceeding.
2. Calculate ROI using the formula: (Revenue - Cost) / Cost × 100.
3. Estimate revenue as conversions × average order value.
4. Provide a breakdown of cost per conversion, cost per influencer, and overall ROI percentage.
5. Compare the result against industry benchmarks (if provided) and highlight whether the campaign is above, at, or below average.
6. Offer 2–3 actionable recommendations to improve future ROI.

Output format

• A summary table with key metrics (total cost, revenue, ROI, cost per conversion).
• A short paragraph interpreting the numbers.
• A bullet list of recommendations.
• Keep total output under 300 words.

Guardrails

• Do not fabricate benchmarks; if the user does not provide an industry, use general averages and note the assumption.
• Clearly state that ROI calculations are estimates and depend on accurate attribution.
• Do not recommend specific influencers without additional data.

Example

• {{campaign name}}: Summer Launch 2025 | {{total campaign cost}}: $20,000 | {{total conversions}}: 400 | {{average order value}}: $80 | {{benchmark industry}}: beauty