# Cost Savings via Infracost Estimates — Definition of Success

> KPI: Cost Savings via Infracost Estimates
> Target: ≥ 25% on pilot estates (partial)

**What this number means:** the pre-apply cost estimate from Infracost
shows the delta between the planned infrastructure and the current
state. Negative deltas = savings.

**How it's computed:** `sum(fact_cost_estimate.delta_usd WHERE delta < 0)`
per period.

**What's grounded:** the pre-apply estimate (Infracost reads plan JSON,
offline).

**What's deferred:** actual-spend reconciliation from AWS CUR (D-096 —
needs live AWS billing). The placeholder view
`placeholder_live_cur_reconciliation.csv` has the schema ready.