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Migrate legacy infra

Sample numbers prefilled. Change any input to see NPV, FVI, and payback update live.

Annual lift

How much value does this feature create per year? (revenue, saved cost, or both)

Total build cost

Rough one-time investment: engineering time + design + rollout.

Horizon (years)

How many years of lift do you count? 3 is the CFO-friendly default.

Confidence60%

Haircut applied to expected lift when computing FVI.

NPV (undiscounted)

$120,000 lifetime lift − $120,000 build cost

FVI (confidence-weighted)

0.60

Higher = better. Score >1 means the confidence-adjusted lift beats the cost.

Payback

36 months

How long until annual lift covers the build cost.

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Email me this scenario as a memo

One-line verdict, the math, and the assumptions. Pasteable into Notion, Linear, or a CFO email. No account required.