Estimate business interruption cost before and after zero trust segmentation, least-privilege access, and resilient recovery reduce downtime. Combine revenue loss, workforce disruption, fixed recovery cost, and expected downtime reduction.
Residual downtime cost is the interruption expense remaining after the selected time reduction.
Only add cost categories that are distinct. Revenue loss and lost productivity can overlap in some operating models.
At 30 hours, $22,000 revenue loss/hour, 240 employees at $65/hour, $180,000 fixed recovery, and 45% reduction: baseline cost is $1,308,000 and residual cost is $800,400.
Not in this model. The reduction applies to time-based interruption cost, while fixed recovery cost remains.
Use the measure that best reflects actual incremental financial loss and document it consistently.
Yes. Enter only employees whose productive work is materially affected during the modeled outage.
Run a second scenario with a lower affected-employee count to represent reduced blast radius.
No, unless you deliberately incorporate a defensible amount in fixed recovery cost; disclose that assumption.
| Variable | Meaning | Unit |
|---|---|---|
| Downtime | Business interruption duration | hours |
| Revenue loss | Foregone contribution or revenue per hour | USD/hour |
| Labor impact | Affected people × loaded labor cost | USD/hour |
| Reduction | Time-based cost reduction from controls | % |